33903d8f6c
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/115 Reviewed-by: luhahn <luhahn@noreply.gitea.io> Reviewed-by: lafriks <lafriks@noreply.gitea.io> Co-authored-by: martencassel <martencassel@noreply.gitea.io> Co-committed-by: martencassel <martencassel@noreply.gitea.io>
432 lines
15 KiB
Markdown
432 lines
15 KiB
Markdown
# Gitea Helm Chart
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[Gitea](https://gitea.io/en-us/) is a community managed lightweight code hosting solution written in Go. It is published under the MIT license.
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## Introduction
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This helm chart has taken some inspiration from <https://github.com/jfelten/gitea-helm-chart>
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But takes a completly different approach in providing database and cache with dependencies.
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Also this chart provides LDAP and admin user configuration with values as well as it is deployed as statefulset to retain stored repositories.
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## Dependencies
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Gitea can be run with external database and cache. This chart provides those dependencies, which can be
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enabled, or disabled via [configuration](#configuration).
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Dependencies:
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* Postgresql
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* Memcached
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* Mysql
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## Installing
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```sh
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helm repo add gitea-charts https://dl.gitea.io/charts/
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helm install gitea gitea-charts/gitea
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```
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## Prerequisites
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* Kubernetes 1.12+
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* Helm 3.0+
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* PV provisioner for persistent data support
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## Examples
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### Gitea Configuration
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Gitea offers lots of configuration. This is fully described in the [Gitea Cheat Sheet](https://docs.gitea.io/en-us/config-cheat-sheet/).
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```yaml
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gitea:
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config:
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APP_NAME: "Gitea: With a cup of tea."
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repository:
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ROOT: "~/gitea-repositories"
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repository.pull-request:
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WORK_IN_PROGRESS_PREFIXES: "WIP:,[WIP]:"
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```
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### Default Configuration
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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.
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INSTALL_LOCK is always set to true, since we want to configure gitea with this helm chart and everything is taken care of.
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*All default settings are made directly in the generated app.ini, not in the Values.*
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#### Database defaults
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If a builtIn database is enabled the database configuration is set automatically. For example postgresql builtIn which will appear in the app.ini as:
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```ini
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[database]
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DB_TYPE = postgres
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HOST = RELEASE-NAME-postgresql.default.svc.cluster.local:5432
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NAME = gitea
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PASSWD = gitea
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USER = gitea
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```
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#### Memcached defaults
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Memcached is handled the exakt same way as database builtIn. Once memcached builtIn is enabled, this chart will generate the following part in the app.ini:
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```ini
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[cache]
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ADAPTER = memcache
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ENABLED = true
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HOST = RELEASE-NAME-memcached.default.svc.cluster.local:11211
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```
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#### Server defaults
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The server defaults are a bit more complex.
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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.
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```ini
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[server]
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APP_DATA_PATH = /data
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DOMAIN = git.example.com
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HTTP_PORT = 3000
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PROTOCOL = http
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ROOT_URL = http://git.example.com
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SSH_DOMAIN = git.example.com
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SSH_LISTEN_PORT = 22
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SSH_PORT = 22
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ENABLE_PPROF = false
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```
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#### Metrics defaults
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The Prometheus `/metrics` endpoint is disabled by default.
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```ini
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[metrics]
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ENABLED = false
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```
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### External Database
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An external Database can be used instead of builtIn postgresql or mysql.
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```yaml
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gitea:
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database:
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builtIn:
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postgresql:
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enabled: false
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config:
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database:
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DB_TYPE: mysql
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HOST: 127.0.0.1:3306
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NAME: gitea
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USER: root
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PASSWD: gitea
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SCHEMA: gitea
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```
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### Ports and external url
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By default port 3000 is used for web traffic and 22 for ssh. Those can be changed:
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```yaml
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service:
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http:
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port: 3000
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ssh:
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port: 22
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```
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This helmchart 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.
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### ClusterIP
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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:
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```yaml
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service:
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http:
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type: ClusterIP
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port: 3000
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clusterIP:
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ssh:
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type: ClusterIP
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port: 22
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clusterIP:
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```
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### SSH and Ingress
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If you're using ingress and wan't to use SSH, keep in mind, that ingress is not able to forward SSH Ports.
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You will need a LoadBalancer like metallb and a setting in your ssh service annotations.
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```yaml
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service:
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ssh:
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annotations:
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metallb.universe.tf/allow-shared-ip: test
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```
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### Cache
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This helm chart can use a built in cache. The default is memcached from bitnami.
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```yaml
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gitea:
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cache:
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builtIn:
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enabled: true
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```
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If the built in cache should not be used simply configure the cache in gitea.config
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```yaml
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gitea:
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config:
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cache:
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ENABLED: true
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ADAPTER: memory
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INTERVAL: 60
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HOST: 127.0.0.1:9090
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```
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### Persistence
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Gitea will be deployed as a statefulset. By simply enabling the persistence and setting the storage class according to your cluster
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everything else will be taken care of. The following example will create a PVC as a part of the statefulset. This PVC will not be deleted
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even if you uninstall the chart.
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When using Postgresql as dependency, this will also be deployed as a statefulset by default.
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If you want to manage your own PVC you can simply pass the PVC name to the chart.
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```yaml
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persistence:
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enabled: true
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existingClaim: MyAwesomeGiteaClaim
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```
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In case that peristence has been disabled it will simply use an empty dir volume.
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Postgresql handles the persistence in the exact same way.
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You can interact with the postgres settings as displayed in the following example:
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```yaml
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postgresql:
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persistence:
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enabled: true
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existingClaim: MyAwesomeGiteaPostgresClaim
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```
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Mysql also handles persistence the same, even though it is not deployed as a statefulset.
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You can interact with the postgres settings as displayed in the following example:
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```yaml
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mysql:
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persistence:
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enabled: true
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existingClaim: MyAwesomeGiteaMysqlClaim
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```
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### Admin User
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This chart enables you to create a default admin user. It is also possible to update the password for this user by upgrading or redeloying the chart.
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It is not possible to delete an admin user after it has been created. This has to be done in the ui.
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You cannot use `admin` as username.
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```yaml
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gitea:
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admin:
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username: "MyAwesomeGiteaAdmin"
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password: "AReallyAwesomeGiteaPassword"
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email: "gi@tea.com"
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```
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### LDAP Settings
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Like the admin user the LDAP settings can be updated but also disabled or deleted.
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All LDAP values from <https://docs.gitea.io/en-us/command-line/#admin> are available.
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You can either use them in camel case or kebab case.
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camelCase:
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```yaml
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gitea:
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ldap:
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enabled: true
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name: 'MyAwesomeGiteaLdap'
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securityProtocol: unencrypted
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host: "127.0.0.1"
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port: "389"
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userSearchBase: ou=Users,dc=example,dc=com
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userFilter: sAMAccountName=%s
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adminFilter: CN=Admin,CN=Group,DC=example,DC=com
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emailAttribute: mail
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bindDn: CN=ldap read,OU=Spezial,DC=example,DC=com
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bindPassword: JustAnotherBindPw
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usernameAttribute: CN
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sshPublicKeyAttribute: sshPublicKey
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```
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kebab-case:
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```yaml
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gitea:
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ldap:
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enabled: true
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name: 'MyAwesomeGiteaLdap'
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security-protocol: unencrypted
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host: "127.0.0.1"
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port: "389"
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user-search-base: ou=Users,dc=example,dc=com
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user-filter: sAMAccountName=%s
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admin-filter: CN=Admin,CN=Group,DC=example,DC=com
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email-attribute: mail
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bind-dn: CN=ldap read,OU=Spezial,DC=example,DC=com
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bind-password: JustAnotherBindPw
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username-attribute: CN
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```
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### Metrics and profiling
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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.
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To deploy the `ServiceMonitor`, you first need to ensure that you have deployed `prometheus-operator` and its CRDs: https://github.com/prometheus-operator/prometheus-operator#customresourcedefinitions.
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```yaml
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gitea:
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metrics:
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enabled: true
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serviceMonitor:
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enabled: true
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config:
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server:
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ENABLE_PPROF: true
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```
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### Pod Annotations
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Annotations can be added to the Gitea pod.
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```yaml
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gitea:
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podAnnotations: {}
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```
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## Configuration
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### Others
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| Parameter | Description | Default |
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|-------------------------------------------|--------------------------------------------------------|-------------|
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| statefulset.terminationGracePeriodSeconds | Image to start for this pod | gitea/gitea |
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| statefulset.env | Additional environment variables to pass to containers | [] |
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| extraVolumes | Additional volumes to mount to the Gitea statefulset | {} |
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| extraVolumeMounts | Additional volumes mounts for the Gitea containers | {} |
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| initPreScript | Bash script copied verbatim to start of init container | |
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| securityContext | Run as a specific securityContext | {} |
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### Image
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| Parameter | Description | Default |
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|---------------------|-----------------------------------|------------------------------|
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|image.repository| Image to start for this pod | gitea/gitea |
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|image.tag| [Image tag](https://hub.docker.com/r/gitea/gitea/tags?page=1&ordering=last_updated) | 1.13.2 |
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|image.pullPolicy| Image pull policy | Always |
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### Persistence
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| Parameter | Description | Default |
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|---------------------|-----------------------------------|------------------------------|
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|persistence.enabled| Enable persistence for Gitea |true|
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|persistence.existingClaim| Use an existing claim to store repository information | |
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|persistence.size| Size for persistence to store repo information | 10Gi |
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|persistence.accessModes|AccessMode for persistence||
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|persistence.storageClass|Storage class for repository persistence||
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|persistence.labels|Labels for the persistence volume claim to be created|{}|
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|persistence.annotations|Annotations for the persistence volume claim to be created|{}|
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### Ingress
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| Parameter | Description | Default |
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|---------------------|-----------------------------------|------------------------------|
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|ingress.enabled| enable ingress | false|
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|ingress.annotations| add ingress annotations | |
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|ingress.hosts| add hosts for ingress as string list | git.example.com |
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|ingress.tls|add ingress tls settings|[]|
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### Service
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| Parameter | Description | Default |
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|---------------------|-----------------------------------|------------------------------|
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|service.http.type| Kubernetes service type for web traffic | ClusterIP |
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|service.http.port| Port for web traffic | 3000 |
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|service.ssh.type| Kubernetes service type for ssh traffic | ClusterIP |
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|service.ssh.port| Port for ssh traffic | 22 |
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|service.ssh.externalTrafficPolicy| If `service.ssh.type` is `NodePort` or `LoadBalancer`, set this to `Local` to enable source IP preservation | |
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|service.ssh.externalIPs| SSH service external IP addresses |[]|
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|service.ssh.annotations| Additional ssh annotations for the ssh service ||
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### Gitea Configuration
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| Parameter | Description | Default |
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|---------------------|-----------------------------------|------------------------------|
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|gitea.config | Everything in app.ini can be configured with this dict. See Examples for more details | {} |
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### Memcached BuiltIn
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Memcached is loaded as a dependency from [Bitnami](https://github.com/bitnami/charts/tree/master/bitnami/memcached) if enabled in the values. Complete Configuration can be taken from their website.
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The following parameters are the defaults set by this chart
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| Parameter | Description | Default |
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|memcached.service.port|Memcached Port| 11211|
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### Mysql BuiltIn
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Mysql is loaded as a dependency from stable. Configuration can be found from this [website](https://github.com/helm/charts/tree/master/stable/mysql)
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The following parameters are the defaults set by this chart
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| Parameter | Description | Default |
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|mysql.mysqlRootPassword|Password for the root user. Ignored if existing secret is provided|gitea|
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|mysql.mysqlUser|Username of new user to create.|gitea|
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|mysql.mysqlPassword|Password for the new user. Ignored if existing secret is provided|gitea|
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|mysql.mysqlDatabase|Name for new database to create.|gitea|
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|mysql.service.port|Port to connect to mysql service|3306|
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|mysql.persistence.size|Persistence size for mysql |10Gi|
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### Postgresql BuiltIn
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Postgresql is loaded as a dependency from bitnami. Configuration can be found from this [Bitnami](https://github.com/bitnami/charts/tree/master/bitnami/postgresql)
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The following parameters are the defaults set by this chart
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| Parameter | Description | Default |
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|postgresql.global.postgresql.postgresqlDatabase| PostgreSQL database (overrides postgresqlDatabase)|gitea|
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|postgresql.global.postgresql.postgresqlUsername| PostgreSQL username (overrides postgresqlUsername)|gitea|
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|postgresql.global.postgresql.postgresqlPassword| PostgreSQL admin password (overrides postgresqlPassword)|gitea|
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|postgresql.global.postgresql.servicePort|PostgreSQL port (overrides service.port)|5432|
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|postgresql.persistence.size| PVC Storage Request for PostgreSQL volume |10Gi|
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### MariaDB BuiltIn
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MariaDB is loaded as a dependency from bitnami. Configuration can be found from this [Bitnami](https://github.com/bitnami/charts/tree/master/bitnami/mariadb)
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The following parameters are the defaults set by this chart
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| Parameter | Description | Default |
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|---------------------|-----------------------------------|------------------------------|
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|mariadb.auth.username|Username of new user to create.|gitea|
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|mariadb.auth.password|Password for the new user. Ignored if existing secret is provided|gitea|
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|mariadb.auth.database|Name for new database to create.|gitea|
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|mariadb.auth.rootPassword|Password for the root user.|gitea|
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|mariadb.primary.service.port|Port to connect to mariadb service|3306|
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|mariadb.primary.persistence.size|Persistence size for mariadb |10Gi|
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