helm-chart/README.md
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Allowing Custom Labels in SVC Templates (#597)
### Description of the change
The change allows users of this chart to specify custom labels for the HTTP & SSH Services that get deployed. They are optional and if given are added to the standard list of labels.

### Benefits
Certain use cases require labelling services to be able to select them in other places. Specifiying them directly in the helm chart avoids having to label by hand everytime.

Concrete Use Case Example: Cilium Layer 2 Announcements require selecting services to announce via labels (see [docs](https://docs.cilium.io/en/stable/network/l2-announcements/#service-selector)). I would like to add a label to the SSH service, but not the HTTP Service (which is handled via an ingress).

### Possible drawbacks
I don't see any, using this feature is optional :)

### Checklist

- [X] Parameters are documented in the `values.yaml` and added to the `README.md` using [readme-generator-for-helm](https://github.com/bitnami-labs/readme-generator-for-helm)
- [X] Breaking changes are documented in the `README.md`
- [X] Templating unittests are added

Co-authored-by: Remo Geissbühler <git@remogeissbuehler.ch>
Co-authored-by: justusbunsi <justusbunsi@noreply.gitea.com>
Reviewed-on: #597
Reviewed-by: pat-s <pat-s@noreply.gitea.com>
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.com>
Co-authored-by: remogeissbuehler <remogeissbuehler@noreply.gitea.com>
Co-committed-by: remogeissbuehler <remogeissbuehler@noreply.gitea.com>
2024-01-13 09:58:30 +00:00

68 KiB

Gitea Helm Chart

Gitea is a community managed lightweight code hosting solution written in Go. It is published under the MIT license.

Introduction

This helm chart has taken some inspiration from jfelten's helm chart. Yet it takes a completely different approach in providing a database and cache with dependencies. Additionally, this chart allows to provide LDAP and admin user configuration with values.

Update and versioning policy

The Gitea helm chart versioning does not follow Gitea's versioning. The latest chart version can be looked up in https://dl.gitea.com/charts or in the repository releases.

The chart aims to follow Gitea's releases closely. There might be times when the chart is behind the latest Gitea release. This might be caused by different reasons, most often due to time constraints of the maintainers (remember, all work here is done voluntarily in the spare time of people). If you're eager to use the latest Gitea version earlier than this chart catches up, then change the tag in values.yaml to the latest Gitea version. Note that besides the exact Gitea version one can also use the :1 tag to automatically follow the latest Gitea version. This should be combined with image.pullPolicy: "Always". Important: Using the :1 will also automatically jump to new minor release (e.g. from 1.13 to 1.14) which may eventually cause incompatibilities if major/breaking changes happened between these versions. This is due to Gitea not strictly following semantic versioning as breaking changes do not increase the major version. I.e., "minor" version bumps are considered "major". Yet most often no issues will be encountered and the chart maintainers aim to communicate early/upfront if this would be the case.

Dependencies

Gitea is most performant when run with an external database and cache. This chart provides those dependencies via sub-charts. Users can also configure their own external providers via the configuration.

HA Dependencies

These dependencies are enabled by default:

Non-HA Dependencies

Alternatively, the following non-HA replacements are available:

  • PostgreSQL (Bitnami PostgreSQL)

Dependency Versioning

Updates of sub-charts will be incorporated into the Gitea chart as they are released. The reasoning behind this is that new users of the chart will start with the most recent sub-chart dependency versions.

Note If you want to stay on an older appVersion of a sub-chart dependency (e.g. PostgreSQL), you need to override the image tag in your values.yaml file. In fact, we recommend to do so right from the start to be independent of major sub-chart dependency changes as they are released. There is no need to update to every new PostgreSQL major version - you can happily skip some and do larger updates when you are ready for them.

We recommend to use a rolling tag like :<majorVersion>-debian-<debian major version> to incorporate minor and patch updates for the respective major version as they are released. Alternatively you can also use a versioning helper tool like renovate.

Please double-check the image repository and available tags in the sub-chart:

and look up the image tag which fits your needs on Dockerhub.

Installing

helm repo add gitea-charts https://dl.gitea.com/charts/
helm repo update
helm install gitea gitea-charts/gitea

Alternatively, the chart can also be installed from Dockerhub (since v9.6.0)

helm install gitea oci://registry-1.docker.io/giteacharts/gitea

When upgrading, please refer to the Upgrading section at the bottom of this document for major and breaking changes.

High Availability

Since version 9.0.0 this chart supports running Gitea and it's dependencies in HA mode. Care must be taken for production use as not all implementation details of Gitea core are officially HA-ready yet.

Deploying a HA-ready Gitea instance requires some effort including using HA-ready dependencies. See the HA Setup document for more details.

Configuration

Gitea offers lots of configuration options. This is fully described in the Gitea Cheat Sheet.

gitea:
  config:
    APP_NAME: "Gitea: With a cup of tea."
    repository:
      ROOT: "~/gitea-repositories"
    repository.pull-request:
      WORK_IN_PROGRESS_PREFIXES: "WIP:,[WIP]:"

Default Configuration

This chart will set a few defaults in the Gitea configuration based on the service and ingress settings. All defaults can be overwritten in gitea.config.

INSTALL_LOCK is always set to true, since we want to configure Gitea with this helm chart and everything is taken care of.

All default settings are made directly in the generated app.ini, not in the Values.

Database defaults

If a builtIn database is enabled the database configuration is set automatically. For example, PostgreSQL builtIn will appear in the app.ini as:

[database]
DB_TYPE = postgres
HOST = RELEASE-NAME-postgresql.default.svc.cluster.local:5432
NAME = gitea
PASSWD = gitea
USER = gitea

Server defaults

The server defaults are a bit more complex. If ingress is enabled, the ROOT_URL, DOMAIN and SSH_DOMAIN will be set accordingly. HTTP_PORT always defaults to 3000 as well as SSH_PORT to 22.

[server]
APP_DATA_PATH = /data
DOMAIN = git.example.com
HTTP_PORT = 3000
PROTOCOL = http
ROOT_URL = http://git.example.com
SSH_DOMAIN = git.example.com
SSH_LISTEN_PORT = 22
SSH_PORT = 22
ENABLE_PPROF = false

Metrics defaults

The Prometheus /metrics endpoint is disabled by default.

[metrics]
ENABLED = false

Rootless Defaults

If .Values.image.rootless: true, then the following will occur. In case you use .Values.image.fullOverride, check that this works in your image:

  • $HOME becomes /data/gitea/git

    see deployment.yaml template inside (init-)container "env" declarations

  • START_SSH_SERVER: true (Unless explicity overwritten by gitea.config.server.START_SSH_SERVER)

    see _helpers.tpl in gitea.inline_configuration.defaults.server definition

  • SSH_LISTEN_PORT: 2222 (Unless explicity overwritten by gitea.config.server.SSH_LISTEN_PORT)

    see _helpers.tpl in gitea.inline_configuration.defaults.server definition

  • SSH_LOG_LEVEL environment variable is not injected into the container

    see deployment.yaml template inside container "env" declarations

Session, Cache and Queue

The session, cache and queue settings are set to use the built-in Redis Cluster sub-chart dependency. If Redis Cluster is disabled, the chart will fall back to the Gitea defaults which use "memory" for session and cache and "level" for queue.

While these will work and even not cause immediate issues after startup, they are not recommended for production use. Reasons being that a single pod will take on all the work for session and cache tasks in its available memory. It is likely that the pod will run out of memory or will face substantial memory spikes, depending on the workload. External tools such as redis-cluster or memcached handle these workloads much better.

Single-Pod Configurations

If HA is not needed/desired, the following configurations can be used to deploy a single-pod Gitea instance.

  1. For a production-ready single-pod Gitea instance without external dependencies (using the chart dependency postgresql):

    values.yml
    redis-cluster:
      enabled: false
    postgresql:
      enabled: true
    postgresql-ha:
      enabled: false
    
    persistence:
      enabled: true
    
    gitea:
      config:
        database:
          DB_TYPE: postgres
        session:
          PROVIDER: db
        cache:
          ADAPTER: memory
        queue:
          TYPE: level
        indexer:
          ISSUE_INDEXER_TYPE: bleve
          REPO_INDEXER_ENABLED: true
    
  2. For a minimal DEV installation (using the built-in sqlite DB instead of Postgres):

    This will result in a single-pod Gitea instance without any dependencies and persistence. Do not use this configuration for production use.

    values.yml
    redis-cluster:
      enabled: false
    postgresql:
      enabled: false
    postgresql-ha:
      enabled: false
    
    persistence:
      enabled: false
    
    gitea:
      config:
        database:
          DB_TYPE: sqlite3
        session:
          PROVIDER: memory
        cache:
          ADAPTER: memory
        queue:
          TYPE: level
    

Additional app.ini settings

The generic section cannot be defined that way.

Some settings inside app.ini (like passwords or whole authentication configurations) must be considered sensitive and therefore should not be passed via plain text inside the values.yaml file. In times of GitOps the values.yaml could be stored in a Git repository where sensitive data should never be accessible.

The Helm Chart supports this approach and let the user define custom sources like Kubernetes Secrets to be loaded as environment variables during app.ini creation or update.

gitea:
  additionalConfigSources:
    - secret:
        secretName: gitea-app-ini-oauth
    - configMap:
        name: gitea-app-ini-plaintext

This would mount the two additional volumes (oauth and some-additionals) from different sources to the init container where the app.ini gets updated. All files mounted that way will be read and converted to environment variables and then added to the app.ini using environment-to-ini.

The key of such additional source represents the section inside the app.ini. The value for each key can be multiline ini-like definitions.

In example, the referenced gitea-app-ini-plaintext could look like this.

apiVersion: v1
kind: ConfigMap
metadata:
  name: gitea-app-ini-plaintext
data:
  session: |
    PROVIDER=memory
    SAME_SITE=strict    
  cron.archive_cleanup: |
    ENABLED=true    

Or when using a Kubernetes secret, having the same data structure:

apiVersion: v1
kind: Secret
metadata:
  name: gitea-security-related-configuration
type: Opaque
stringData:
  security: |
    PASSWORD_COMPLEXITY=off    
  session: |
    SAME_SITE=strict    

User defined environment variables in app.ini

Users are able to define their own environment variables, which are loaded into the containers. We also support to directly interact with the generated app.ini.

To inject self defined variables into the app.ini a certain format needs to be honored. This is described in detail on the env-to-ini page.

Prior to Gitea 1.20 and Chart 9.0.0 the helm chart had a custom prefix ENV_TO_INI. After the support for a custom prefix was removed in Gite core, the prefix was changed to GITEA.

For example a database setting needs to have the following format:

gitea:
  additionalConfigFromEnvs:
    - name: GITEA__DATABASE__HOST
      value: my.own.host
    - name: GITEA__DATABASE__PASSWD
      valueFrom:
        secretKeyRef:
          name: postgres-secret
          key: password

Priority (highest to lowest) for defining app.ini variables:

  1. Environment variables prefixed with GITEA
  2. Additional config sources
  3. Values defined in gitea.config

External Database

Any external database listed in https://docs.gitea.com/installation/database-prep can be used instead of the built-in PostgreSQL. In fact, it is highly recommended to use an external database to ensure a stable Gitea installation longterm.

If an external database is used, no matter which type, make sure to set postgresql.enabled to false to disable the use of the built-in PostgreSQL.

gitea:
  config:
    database:
      DB_TYPE: mysql
      HOST: <mysql HOST>
      NAME: gitea
      USER: root
      PASSWD: gitea
      SCHEMA: gitea

postgresql:
  enabled: false

Ports and external url

By default port 3000 is used for web traffic and 22 for ssh. Those can be changed:

service:
  http:
    port: 3000
  ssh:
    port: 22

This helm chart automatically configures the clone urls to use the correct ports. You can change these ports by hand using the gitea.config dict. However you should know what you're doing.

ClusterIP

By default the clusterIP will be set to None, which is the default for headless services. However if you want to omit the clusterIP field in the service, use the following values:

service:
  http:
    type: ClusterIP
    port: 3000
    clusterIP:
  ssh:
    type: ClusterIP
    port: 22
    clusterIP:

SSH and Ingress

If you're using ingress and want to use SSH, keep in mind, that ingress is not able to forward SSH Ports. You will need a LoadBalancer like metallb and a setting in your ssh service annotations.

service:
  ssh:
    annotations:
      metallb.universe.tf/allow-shared-ip: test

SSH on crio based kubernetes cluster

If you use crio as container runtime it is not possible to read from a remote repository. You should get an error message like this:

$ git clone git@k8s-demo.internal:admin/test.git
Cloning into 'test'...
Connection reset by 192.168.179.217 port 22
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

To solve this problem add the capability SYS_CHROOT to the securityContext. More about this issue here.

Cache

The cache handling is done via redis-cluster (via the bitnami chart) by default. This deployment is HA-ready but can also be used for single-pod deployments. By default, 6 replicas are deployed for a working redis-cluster deployment. Many cloud providers offer a managed redis service, which can be used instead of the built-in redis-cluster.

redis-cluster:
  enabled: true

Persistence

Gitea will be deployed as a deployment. By simply enabling the persistence and setting the storage class according to your cluster everything else will be taken care of. The following example will create a PVC as a part of the deployment.

Please note, that an empty storageClass in the persistence will result in kubernetes using your default storage class.

If you want to use your own storage class define it as follows:

persistence:
  enabled: true
  storageClass: myOwnStorageClass

If you want to manage your own PVC you can simply pass the PVC name to the chart.

persistence:
  enabled: true
  claimName: MyAwesomeGiteaClaim

In case that persistence has been disabled it will simply use an empty dir volume.

PostgreSQL handles the persistence in the exact same way. You can interact with the postgres settings as displayed in the following example:

postgresql:
  persistence:
    enabled: true
    claimName: MyAwesomeGiteaPostgresClaim

Admin User

This chart enables you to create a default admin user. It is also possible to update the password for this user by upgrading or redeploying the chart. It is not possible to delete an admin user after it has been created. This has to be done in the ui. You cannot use admin as username.

gitea:
  admin:
    username: "MyAwesomeGiteaAdmin"
    password: "AReallyAwesomeGiteaPassword"
    email: "gi@tea.com"

You can also use an existing Secret to configure the admin user:

apiVersion: v1
kind: Secret
metadata:
  name: gitea-admin-secret
type: Opaque
stringData:
  username: MyAwesomeGiteaAdmin
  password: AReallyAwesomeGiteaPassword
gitea:
  admin:
    existingSecret: gitea-admin-secret

LDAP Settings

Like the admin user the LDAP settings can be updated. All LDAP values from https://docs.gitea.com/administration/command-line#admin are available.

Multiple LDAP sources can be configured with additional LDAP list items.

gitea:
  ldap:
    - name: MyAwesomeGiteaLdap
      securityProtocol: unencrypted
      host: "127.0.0.1"
      port: "389"
      userSearchBase: ou=Users,dc=example,dc=com
      userFilter: sAMAccountName=%s
      adminFilter: CN=Admin,CN=Group,DC=example,DC=com
      emailAttribute: mail
      bindDn: CN=ldap read,OU=Spezial,DC=example,DC=com
      bindPassword: JustAnotherBindPw
      usernameAttribute: CN
      publicSSHKeyAttribute: publicSSHKey

You can also use an existing secret to set the bindDn and bindPassword:

apiVersion: v1
kind: Secret
metadata:
  name: gitea-ldap-secret
type: Opaque
stringData:
  bindDn: CN=ldap read,OU=Spezial,DC=example,DC=com
  bindPassword: JustAnotherBindPw
gitea:
    ldap:
      - existingSecret: gitea-ldap-secret
        ...

⚠️ Some options are just flags and therefore don't have any values. If they are defined in gitea.ldap configuration, they will be passed to the Gitea CLI without any value. Affected options:

  • notActive
  • skipTlsVerify
  • allowDeactivateAll
  • synchronizeUsers
  • attributesInBind

OAuth2 Settings

Like the admin user, OAuth2 settings can be updated and disabled but not deleted. Deleting OAuth2 settings has to be done in the ui. All OAuth2 values, which are documented here, are available.

Multiple OAuth2 sources can be configured with additional OAuth list items.

gitea:
  oauth:
    - name: "MyAwesomeGiteaOAuth"
      provider: "openidConnect"
      key: "hello"
      secret: "world"
      autoDiscoverUrl: "https://gitea.example.com/.well-known/openid-configuration"
      #useCustomUrls:
      #customAuthUrl:
      #customTokenUrl:
      #customProfileUrl:
      #customEmailUrl:

You can also use an existing secret to set the key and secret:

apiVersion: v1
kind: Secret
metadata:
  name: gitea-oauth-secret
type: Opaque
stringData:
  key: hello
  secret: world
gitea:
  oauth:
    - name: "MyAwesomeGiteaOAuth"
      existingSecret: gitea-oauth-secret
        ...

Configure commit signing

When using the rootless image the gpg key folder is not persistent by default. If you consider using signed commits for internal Gitea activities (e.g. initial commit), you'd need to provide a signing key. Prior to PR186, imported keys had to be re-imported once the container got replaced by another.

The mentioned PR introduced a new configuration object signing allowing you to configure prerequisites for commit signing. By default this section is disabled to maintain backwards compatibility.

signing:
  enabled: false
  gpgHome: /data/git/.gnupg

Regardless of the used container image the signing object allows to specify a private gpg key. Either using the signing.privateKey to define the key inline, or refer to an existing secret containing the key data by using signing.existingSecret.

apiVersion: v1
kind: Secret
metadata:
  name: custom-gitea-gpg-key
type: Opaque
stringData:
  privateKey: |-
    -----BEGIN PGP PRIVATE KEY BLOCK-----
    ...
    -----END PGP PRIVATE KEY BLOCK-----    
signing:
  existingSecret: custom-gitea-gpg-key

To use the gpg key, Gitea needs to be configured accordingly. A detailed description can be found in the official Gitea documentation.

Metrics and profiling

A Prometheus /metrics endpoint on the HTTP_PORT and pprof profiling endpoints on port 6060 can be enabled under gitea. Beware that the metrics endpoint is exposed via the ingress, manage access using ingress annotations for example.

To deploy the ServiceMonitor, you first need to ensure that you have deployed prometheus-operator and its CRDs.

gitea:
  metrics:
    enabled: true
    serviceMonitor:
      enabled: true

  config:
    server:
      ENABLE_PPROF: true

Pod annotations

Annotations can be added to the Gitea pod.

gitea:
  podAnnotations: {}

Themes

Custom themes can be added via k8s secrets and referencing them in values.yaml.

The http provider is useful here.

extraVolumes:
  - name: gitea-themes
    secret:
      secretName: gitea-themes

extraVolumeMounts:
  - name: gitea-themes
    readOnly: true
    mountPath: "/data/gitea/public/assets/css"

The secret can be created via terraform:

resource "kubernetes_secret" "gitea-themes" {
  metadata {
    name      = "gitea-themes"
    namespace = "gitea"
  }

  data = {
    "my-theme.css"      = data.http.gitea-theme-light.body
    "my-theme-dark.css" = data.http.gitea-theme-dark.body
    "my-theme-auto.css" = data.http.gitea-theme-auto.body
  }

  type = "Opaque"
}


data "http" "gitea-theme-light" {
  url = "<raw theme url>"

  request_headers = {
    Accept = "application/json"
  }
}

data "http" "gitea-theme-dark" {
  url = "<raw theme url>"

  request_headers = {
    Accept = "application/json"
  }
}

data "http" "gitea-theme-auto" {
  url = "<raw theme url>"

  request_headers = {
    Accept = "application/json"
  }
}

or natively via kubectl:

kubectl create secret generic gitea-themes --from-file={{FULL-PATH-TO-CSS}} --namespace gitea

Renovate

To be able to use a digest value which is automatically updated by Renovate a customManager is required. Here's an examplary values.yml definition which makes use of a digest:

image:
  repository: gitea/gitea
  tag: 1.20.2
  digest: sha256:6e3b85a36653894d6741d0aefb41dfaac39044e028a42e0a520cc05ebd7bfc3f

By default Renovate adds digest after the tag. To comply with the Gitea helm chart definition of the digest parameter, a "customManagers" definition is required:

"customManagers": [
  {
    "customType": "regex",
    "description": "Apply an explicit gitea digest field match",
    "fileMatch": ["values\\.ya?ml"],
    "matchStrings": ["(?<depName>gitea\\/gitea)\\n(?<indentation>\\s+)tag: (?<currentValue>[^@].*?)\\n\\s+digest: (?<currentDigest>sha256:[a-f0-9]+)"],
    "datasourceTemplate": "docker",
    "autoReplaceStringTemplate": "{{depName}}\n{{indentation}}tag: {{newValue}}\n{{indentation}}digest: {{#if newDigest}}{{{newDigest}}}{{else}}{{{currentDigest}}}{{/if}}"
  }
]

Parameters

Global

Name Description Value
global.imageRegistry global image registry override ""
global.imagePullSecrets global image pull secrets override; can be extended by imagePullSecrets []
global.storageClass global storage class override ""
global.hostAliases global hostAliases which will be added to the pod's hosts files []
replicaCount number of replicas for the deployment 1

strategy

Name Description Value
strategy.type strategy type RollingUpdate
strategy.rollingUpdate.maxSurge maxSurge 100%
strategy.rollingUpdate.maxUnavailable maxUnavailable 0
clusterDomain cluster domain cluster.local

Image

Name Description Value
image.registry image registry, e.g. gcr.io,docker.io ""
image.repository Image to start for this pod gitea/gitea
image.tag Visit: Image tag. Defaults to appVersion within Chart.yaml. ""
image.digest Image digest. Allows to pin the given image tag. Useful for having control over mutable tags like latest ""
image.pullPolicy Image pull policy IfNotPresent
image.rootless Wether or not to pull the rootless version of Gitea, only works on Gitea 1.14.x or higher true
image.fullOverride Completely overrides the image registry, path/image, tag and digest. Adjust image.rootless accordingly and review Rootless defaults. ""
imagePullSecrets Secret to use for pulling the image []

Security

Name Description Value
podSecurityContext.fsGroup Set the shared file system group for all containers in the pod. 1000
containerSecurityContext Security context {}
securityContext Run init and Gitea containers as a specific securityContext {}
podDisruptionBudget Pod disruption budget {}

Service

Name Description Value
service.http.type Kubernetes service type for web traffic ClusterIP
service.http.port Port number for web traffic 3000
service.http.clusterIP ClusterIP setting for http autosetup for deployment is None None
service.http.loadBalancerIP LoadBalancer IP setting nil
service.http.nodePort NodePort for http service nil
service.http.externalTrafficPolicy If service.http.type is NodePort or LoadBalancer, set this to Local to enable source IP preservation nil
service.http.externalIPs External IPs for service nil
service.http.ipFamilyPolicy HTTP service dual-stack policy nil
service.http.ipFamilies HTTP service dual-stack familiy selection,for dual-stack parameters see official kubernetes dual-stack concept documentation. nil
service.http.loadBalancerSourceRanges Source range filter for http loadbalancer []
service.http.annotations HTTP service annotations {}
service.http.labels HTTP service additional labels {}
service.ssh.type Kubernetes service type for ssh traffic ClusterIP
service.ssh.port Port number for ssh traffic 22
service.ssh.clusterIP ClusterIP setting for ssh autosetup for deployment is None None
service.ssh.loadBalancerIP LoadBalancer IP setting nil
service.ssh.nodePort NodePort for ssh service nil
service.ssh.externalTrafficPolicy If service.ssh.type is NodePort or LoadBalancer, set this to Local to enable source IP preservation nil
service.ssh.externalIPs External IPs for service nil
service.ssh.ipFamilyPolicy SSH service dual-stack policy nil
service.ssh.ipFamilies SSH service dual-stack familiy selection,for dual-stack parameters see official kubernetes dual-stack concept documentation. nil
service.ssh.hostPort HostPort for ssh service nil
service.ssh.loadBalancerSourceRanges Source range filter for ssh loadbalancer []
service.ssh.annotations SSH service annotations {}
service.ssh.labels SSH service additional labels {}

Ingress

Name Description Value
ingress.enabled Enable ingress false
ingress.className Ingress class name nil
ingress.annotations Ingress annotations {}
ingress.hosts[0].host Default Ingress host git.example.com
ingress.hosts[0].paths[0].path Default Ingress path /
ingress.hosts[0].paths[0].pathType Ingress path type Prefix
ingress.tls Ingress tls settings []
ingress.apiVersion Specify APIVersion of ingress object. Mostly would only be used for argocd.

deployment

Name Description Value
resources Kubernetes resources {}
schedulerName Use an alternate scheduler, e.g. "stork" ""
nodeSelector NodeSelector for the deployment {}
tolerations Tolerations for the deployment []
affinity Affinity for the deployment {}
topologySpreadConstraints TopologySpreadConstraints for the deployment []
dnsConfig dnsConfig for the deployment {}
priorityClassName priorityClassName for the deployment ""
deployment.env Additional environment variables to pass to containers []
deployment.terminationGracePeriodSeconds How long to wait until forcefully kill the pod 60
deployment.labels Labels for the deployment {}
deployment.annotations Annotations for the Gitea deployment to be created {}

ServiceAccount

Name Description Value
serviceAccount.create Enable the creation of a ServiceAccount false
serviceAccount.name Name of the created ServiceAccount, defaults to release name. Can also link to an externally provided ServiceAccount that should be used. ""
serviceAccount.automountServiceAccountToken Enable/disable auto mounting of the service account token false
serviceAccount.imagePullSecrets Image pull secrets, available to the ServiceAccount []
serviceAccount.annotations Custom annotations for the ServiceAccount {}
serviceAccount.labels Custom labels for the ServiceAccount {}

Persistence

Name Description Value
persistence.enabled Enable persistent storage true
persistence.create Whether to create the persistentVolumeClaim for shared storage true
persistence.mount Whether the persistentVolumeClaim should be mounted (even if not created) true
persistence.claimName Use an existing claim to store repository information gitea-shared-storage
persistence.size Size for persistence to store repo information 10Gi
persistence.accessModes AccessMode for persistence ["ReadWriteOnce"]
persistence.labels Labels for the persistence volume claim to be created {}
persistence.annotations.helm.sh/resource-policy Resource policy for the persistence volume claim keep
persistence.storageClass Name of the storage class to use nil
persistence.subPath Subdirectory of the volume to mount at nil
persistence.volumeName Name of persistent volume in PVC ""
extraVolumes Additional volumes to mount to the Gitea deployment []
extraContainerVolumeMounts Mounts that are only mapped into the Gitea runtime/main container, to e.g. override custom templates. []
extraInitVolumeMounts Mounts that are only mapped into the init-containers. Can be used for additional preconfiguration. []
extraVolumeMounts DEPRECATED Additional volume mounts for init containers and the Gitea main container []

Init

Name Description Value
initPreScript Bash shell script copied verbatim to the start of the init-container. ""
initContainers.resources.limits initContainers.limits Kubernetes resource limits for init containers {}
initContainers.resources.requests.cpu initContainers.requests.cpu Kubernetes cpu resource limits for init containers 100m
initContainers.resources.requests.memory initContainers.requests.memory Kubernetes memory resource limits for init containers 128Mi

Signing

Name Description Value
signing.enabled Enable commit/action signing false
signing.gpgHome GPG home directory /data/git/.gnupg
signing.privateKey Inline private gpg key for signed Gitea actions ""
signing.existingSecret Use an existing secret to store the value of signing.privateKey ""

Gitea

Name Description Value
gitea.admin.username Username for the Gitea admin user gitea_admin
gitea.admin.existingSecret Use an existing secret to store admin user credentials nil
gitea.admin.password Password for the Gitea admin user r8sA8CPHD9!bt6d
gitea.admin.email Email for the Gitea admin user gitea@local.domain
gitea.metrics.enabled Enable Gitea metrics false
gitea.metrics.serviceMonitor.enabled Enable Gitea metrics service monitor false
gitea.ldap LDAP configuration []
gitea.oauth OAuth configuration []
gitea.config.server.SSH_PORT SSH port for rootlful Gitea image 22
gitea.config.server.SSH_LISTEN_PORT SSH port for rootless Gitea image 2222
gitea.additionalConfigSources Additional configuration from secret or configmap []
gitea.additionalConfigFromEnvs Additional configuration sources from environment variables []
gitea.podAnnotations Annotations for the Gitea pod {}
gitea.ssh.logLevel Configure OpenSSH's log level. Only available for root-based Gitea image. INFO

LivenessProbe

Name Description Value
gitea.livenessProbe.enabled Enable liveness probe true
gitea.livenessProbe.tcpSocket.port Port to probe for liveness http
gitea.livenessProbe.initialDelaySeconds Initial delay before liveness probe is initiated 200
gitea.livenessProbe.timeoutSeconds Timeout for liveness probe 1
gitea.livenessProbe.periodSeconds Period for liveness probe 10
gitea.livenessProbe.successThreshold Success threshold for liveness probe 1
gitea.livenessProbe.failureThreshold Failure threshold for liveness probe 10

ReadinessProbe

Name Description Value
gitea.readinessProbe.enabled Enable readiness probe true
gitea.readinessProbe.tcpSocket.port Port to probe for readiness http
gitea.readinessProbe.initialDelaySeconds Initial delay before readiness probe is initiated 5
gitea.readinessProbe.timeoutSeconds Timeout for readiness probe 1
gitea.readinessProbe.periodSeconds Period for readiness probe 10
gitea.readinessProbe.successThreshold Success threshold for readiness probe 1
gitea.readinessProbe.failureThreshold Failure threshold for readiness probe 3

StartupProbe

Name Description Value
gitea.startupProbe.enabled Enable startup probe false
gitea.startupProbe.tcpSocket.port Port to probe for startup http
gitea.startupProbe.initialDelaySeconds Initial delay before startup probe is initiated 60
gitea.startupProbe.timeoutSeconds Timeout for startup probe 1
gitea.startupProbe.periodSeconds Period for startup probe 10
gitea.startupProbe.successThreshold Success threshold for startup probe 1
gitea.startupProbe.failureThreshold Failure threshold for startup probe 10

redis-cluster

Name Description Value
redis-cluster.enabled Enable redis true
redis-cluster.usePassword Whether to use password authentication false
redis-cluster.cluster.nodes Number of redis cluster master nodes 3
redis-cluster.cluster.replicas Number of redis cluster master node replicas 0

PostgreSQL-ha

Name Description Value
postgresql-ha.enabled Enable PostgreSQL-ha true
postgresql-ha.postgresql.password Password for the gitea user (overrides auth.password) changeme4
postgresql-ha.global.postgresql.database Name for a custom database to create (overrides auth.database) gitea
postgresql-ha.global.postgresql.username Name for a custom user to create (overrides auth.username) gitea
postgresql-ha.global.postgresql.password Name for a custom password to create (overrides auth.password) gitea
postgresql-ha.postgresql.repmgrPassword Repmgr Password changeme2
postgresql-ha.postgresql.postgresPassword postgres Password changeme1
postgresql-ha.pgpool.adminPassword pgpool adminPassword changeme3
postgresql-ha.service.ports.postgresql PostgreSQL service port (overrides service.ports.postgresql) 5432
postgresql-ha.primary.persistence.size PVC Storage Request for PostgreSQL-ha volume 10Gi

PostgreSQL

Name Description Value
postgresql.enabled Enable PostgreSQL false
postgresql.global.postgresql.auth.password Password for the gitea user (overrides auth.password) gitea
postgresql.global.postgresql.auth.database Name for a custom database to create (overrides auth.database) gitea
postgresql.global.postgresql.auth.username Name for a custom user to create (overrides auth.username) gitea
postgresql.global.postgresql.service.ports.postgresql PostgreSQL service port (overrides service.ports.postgresql) 5432
postgresql.primary.persistence.size PVC Storage Request for PostgreSQL volume 10Gi

Advanced

Name Description Value
checkDeprecation Set it to false to skip this basic validation check. true
test.enabled Set it to false to disable test-connection Pod. true
test.image.name Image name for the wget container used in the test-connection Pod. busybox
test.image.tag Image tag for the wget container used in the test-connection Pod. latest
extraDeploy Array of extra objects to deploy with the release []

Contributing

Expected workflow is: Fork -> Patch -> Push -> Pull Request

See CONTRIBUTORS GUIDE for details.

Upgrading

This section lists major and breaking changes of each Helm Chart version. Please read them carefully to upgrade successfully, especially the change of the default database backend! If you miss this, blindly upgrading may delete your Postgres instance and you may lose your data!

To 10.0.0

Breaking changes

  • Update PostgreSQL sub-chart dependencies to appVersion 16.x
  • Update to sub-charts versioning approach: Users are encouraged to pin the version tag of the sub-chart dependencies to a major appVersion. This avoids issues during chart upgrades and allows to incorporate new sub-chart versions as they are released. Please see the new README section describing the versioning approach for sub-chart versions.
To 9.6.0

Chart 9.6.0 ships with Gitea 1.21.0. While there are no breaking changes in the chart, please check the changes of the 1.21 release blog post.

To 9.0.0

This chart release comes with many breaking changes while aiming for a HA-ready setup. Please go through all of them carefully to perform a successful upgrade. Here's a brief summary again, followed by more detailed migration instructions:

  • Switch from Statefulset to Deployment
  • Switch from Memcached to redis-cluster as the default session and queue provider
  • Switch from postgres to postgres-ha as the default database provider
  • A chart-internal PVC bootstrapping logic
    • New persistence.mount: whether to mount an existent PVC (even if not creating it)
    • New persistence.create: whether to create a new PVC
    • Renamed persistence.existingClaim to persistence.claimName

While not required, we recommend to start with a RWX PV for new installations. A RWX volume is required for installation aiming for HA.

If you want to stay with a pre-existing RWO PV, you need to set

  • persistence.mount=true
  • persistence.create=false
  • persistence.claimName to the name of your existing PVC.

If you do not, Gitea will create a new PVC which will in turn create a new PV. If this happened to you by accident, you can still recover your data by setting using the settings from above in a subsequent run.

If you want to stay with a memcache instead of redis-cluster, you need to deploy memcache manually (e.g. from bitnami) and set

  • cache.HOST = "<memcache connection string>"
  • cache.ADAPTER = "memcache"
  • session.PROVIDER = "memcache"
  • session.PROVIDER_CONFIG = "<memcache connection string>"
  • queue.TYPE = "memcache"
  • queue.CONN_STR = "<memcache connection string>"

The memcache connection string has the scheme memcache://<memcache service name>:<memcache service port>, e.g. gitea-memcached.gitea.svc.cluster.local:11211. The first item here (<memcache service name>) will be different compared to the example if you deploy memcache yourself.

The above changes are motivated by the idea to tidy dependencies but also have HA-ready ones at the same time. The previous memcache default was not HA-ready, hence we decided to switch to redis-cluster by default.

If you are coming from an existing deployment and #356 is still open, you need to set the config sections for cache, session and queue explicitly:

gitea:
  config:
    session:
      PROVIDER: redis-cluster
      PROVIDER_CONFIG: redis+cluster://:gitea@gitea-redis-cluster-headless.<namespace>.svc.cluster.local:6379/0?pool_size=100&idle_timeout=180s&

    cache:
      ENABLED: true
      ADAPTER: redis-cluster
      HOST: redis+cluster://:gitea@gitea-redis-cluster-headless.<namespace>.svc.cluster.local:6379/0?pool_size=100&idle_timeout=180s&

    queue:
      TYPE: redis
      CONN_STR: redis+cluster://:gitea@gitea-redis-cluster-headless.<namespace>.svc.cluster.local:6379/0?pool_size=100&idle_timeout=180s&

Switch to rootless image by default

If you are facing errors like WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED due to this automatic transition: Have a look at this discussion and either set image.rootless: false or manually update your ~/.ssh/known_hosts file(s).

Transitioning from a RWO to RWX Persistent Volume

If you want to switch to a RWX volume and go for HA, you need to

  1. Backup the data stored under /data
  2. Let the chart create a new RWX PV (or do it statically yourself)
  3. Restore the backup to the same location in the new PV

Transitioning from Postgres to Postgres HA

If you are running with a non-HA PG DB from a previous chart release, you need to set

  • postgresql-ha.enabled=false
  • postgresql.enabled=true

This is needed to stay with your existing single-instance DB (as the HA-variant is the new default).

Change of env-to-ini prefix

Before this release, the env-to-ini prefix was ENV_TO_INI__. This allowed a clear distinction between user-provided and chart-provided env-to-ini variables. Due to the removal custom prefix feature in the upstream implementation of env-to-ini, the prefix has been changed to the default GITEA__.

If you previously had defined env vars that had the ENV_TO_INI__ prefix, you need to change them to GITEA__ in order for them to be picked up by the chart.

To 8.0.0

Removal of MariaDB and MySQL DB chart dependencies

In this version support for DB chart dependencies of MySQL and MariaDB have been removed to simplify the maintenance of the helm chart. External MySQL and MariaDB databases are still supported and will be in the future.

Postgres Update from v11 to v15

This Chart version updates the Postgres chart dependency and subsequently Postgres from v11 to v15. Please read the Postgres Release Notes for version-specific changes. With respect to values.yaml, parameters username, database and password have been regrouped under auth and slightly renamed. persistence has also been regrouped under the primary key. Please adjust your values.yaml accordingly.

Attention: The Postgres upgrade is not automatically handled by the chart and must be done by yourself. See this comment for an extensive walkthrough. We again highly encourage users to use an external (managed) database for production instances.

To 7.0.0

Private GPG key configuration for Gitea signing actions

Having signing.enabled=true now requires to use either signing.privateKey or signing.existingSecret so that the Chart can automatically prepare the GPG key for Gitea internal signing actions. See Configure commit signing for details.

To 6.0.0

Different volume mounts for init-containers and runtime container

The extraVolumeMounts is deprecated in favor of extraInitVolumeMounts and extraContainerVolumeMounts. You can now have different mounts for the initialization phase and Gitea runtime. The deprecated extraVolumeMounts will still be available for the time being and is mounted into every container. If you want to switch to the new settings and want to mount specific volumes into all containers, you have to configure their mount points within both new settings.

Combining values from the deprecated setting with values from the new settings is not possible.

New enabled flag for startupProbe

Prior to this version the startupProbe was just a commented sample within the values.yaml. With the migration to an auto-generated Parameters section, a new parameter gitea.startupProbe.enabled has been introduced set to false by default.

If you are using the startupProbe you need to add that new parameter and set it to true. Otherwise, your defined probe won't be considered after the upgrade.

To 5.0.0

💥 The Helm Chart now requires Gitea versions of at least 1.11.0.

Enable Dependencies

The values to enable the dependencies, such as PostgreSQL, Memcached, MySQL and MariaDB have been moved from gitea.database.builtIn. to the dependency values.

You can now enable the dependencies as followed:

memcached:
  enabled: true

postgresql:
  enabled: true

mysql:
  enabled: false

mariadb:
  enabled: false

App.ini generation

The app.ini generation has changed and now utilizes the environment-to-ini script provided by newer Gitea versions. This change ensures, that the app.ini is now persistent.

Secret Key generation

Gitea secret keys (SECRET_KEY, INTERNAL_TOKEN, JWT_SECRET) are now generated automatically in certain situations:

  • New install: By default the secrets are created automatically. If you provide secrets via gitea.config they will be used instead of automatic generation.
  • Existing installs: The secrets won't be deployed, neither via configuration nor via auto generation. We explicitly prevent to set new secrets.

💡 It would be possible to set new secret keys manually by entering the running container and rewriting the app.ini by hand. However, this it is not advisable to do so for existing installations. Certain settings like LDAP would not be readable anymore.

Probes

gitea.customLivenessProbe, gitea.customReadinessProbe and gitea.customStartupProbe have been removed.

They are replaced by the settings gitea.livenessProbe, gitea.readinessProbe and gitea.startupProbe which are now fully configurable and used as-is for a Chart deployment. If you have customized their values instead of using the custom prefixed settings, please ensure that you remove the enabled property from each of them.

In case you want to disable one of these probes, let's say the livenessProbe, add the following to your values. The podAnnotation is just there to have a bit more context.

gitea:
+ livenessProbe:
  podAnnotations: {}

Multiple OAuth and LDAP authentication sources

With 5.0.0 of this Chart it is now possible to configure Gitea with multiple OAuth and LDAP sources. As a result, you need to update an existing OAuth/LDAP configuration in your customized values.yaml by replacing the object with settings to a list of settings objects. See OAuth2 Settings and LDAP Settings section for details.

To 4.0.0

Ingress changes

To provide a more flexible Ingress configuration we now support not only host settings but also provide configuration for the path and pathType. So this change changes the hosts from a simple string list, to a list containing a more complex object for more configuration.

ingress:
  enabled: false
  annotations: {}
    # kubernetes.io/ingress.class: nginx
    # kubernetes.io/tls-acme: "true"
-  hosts:
-    - git.example.com
+  hosts:
+    - host: git.example.com
+      paths:
+        - path: /
+          pathType: Prefix
  tls: []
  #  - secretName: chart-example-tls
  #    hosts:
  #      - git.example.com

If you want everything as it was before, you can simply add the following code to all your host entries.

paths:
  - path: /
    pathType: Prefix

Dropped kebab-case support

In 3.x.x it was possible to provide an ldap configuration via kebab-case, this support has now been dropped and only camel case is supported. See LDAP section for more information.

Dependency update

The chart comes with multiple databases and Memcached as dependency, the latest release updated the dependencies.

  • Memcached: 4.2.20 -> 5.9.0
  • PostgreSQL: 9.7.2 -> 10.3.17
  • MariaDB: 8.0.0 -> 9.3.6

If you're using the builtin databases you will most likely redeploy the chart in order to update the database correctly.

Execution of initPreScript

Generally spoken, this might not be a breaking change, but it is worth to be mentioned.

Prior to 4.0.0 only one init container was used to both setup directories and configure Gitea. As of now the actual Gitea configuration is separated from the other pre-execution. This also includes the execution of initPreScript. If you have such script, please be aware of this. Dynamically prepare the Gitea setup during execution by e.g. adding environment variables to the execution context won't work anymore.

Gitea Version 1.14.X repository ROOT

Previously the ROOT folder for the Gitea repositories was located at /data/git/gitea-repositories. In version 1.14 has the path been changed to /data/gitea-repositories.

This chart will set the gitea.config.repository.ROOT value default to /data/git/gitea-repositories.