helm-chart/README.md
luhahn f62b82e956 Let storageClass be set automatically (#45)
Merge branch 'master' into master

Bump chart version and add gitea/helm-chart as link for artifacthub

Remove default value for storageClass

Remove storageClass 'Standard' and let it be set automatically

Co-authored-by: Lucas Hahn <lucas.hahn@novum-rgi.de>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/45
Reviewed-by: techknowlogick <techknowlogick@gitea.io>
Reviewed-by: Andrew Thornton <art27@cantab.net>
Co-Authored-By: luhahn <luhahn@noreply.gitea.io>
Co-Committed-By: luhahn <luhahn@noreply.gitea.io>
2020-10-30 01:10:10 +08:00

345 lines
12 KiB
Markdown

# Gitea Helm Chart
[Gitea](https://gitea.io/en-us/) 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 https://github.com/jfelten/gitea-helm-chart
But takes a completly different approach in providing database and cache with dependencies.
Also this chart provides ldap and admin user configuration with values as well as it is deployed as statefulset to retain stored repositories.
## Dependencies
Gitea can be run with external database and cache. This chart provides those dependencies, which can be
enabled, or disabled via [configuration](#configuration).
Dependencies:
* Postgresql
* Memcached
* Mysql
## Installing
```
helm repo add gitea-charts https://dl.gitea.io/charts/
helm install gitea gitea-charts/gitea
```
## Prerequisites
* Kubernetes 1.12+
* Helm 3.0+
* PV provisioner for persistent data support
## Examples
### Gitea Configuration
Gitea offers lots of configuration. This is fully described in the [Gitea Cheat Sheet](https://docs.gitea.io/en-us/config-cheat-sheet/).
```yaml
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 which 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
```
#### Memcached defaults
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:
```
[cache]
ADAPTER = memcache
ENABLED = true
HOST = RELEASE-NAME-memcached.default.svc.cluster.local:11211
```
#### 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
```
### External Database
An external Database can be used instead of builtIn postgresql or mysql.
```yaml
gitea:
database:
builtIn:
postgresql:
enabled: false
config:
database:
DB_TYPE: mysql
HOST: 127.0.0.1:3306
NAME: gitea
USER: root
PASSWD: gitea
SCHEMA: gitea
```
### Ports and external url
By default port 3000 is used for web traffic and 22 for ssh. Those can be changed:
```yaml
service:
http:
port: 3000
ssh:
port: 22
```
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.
### Cache
This helm chart can use a built in cache. The default is memcached from bitnami.
```yaml
gitea:
cache:
builtIn:
enabled: true
```
If the built in cache should not be used simply configure the cache in gitea.config
```yaml
gitea:
config:
cache:
ENABLED: true
ADAPTER: memory
INTERVAL: 60
HOST: 127.0.0.1:9090
```
### Persistence
Gitea will be deployed as a statefulset. 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 statefulset. This PVC will not be deleted
even if you uninstall the chart.
When using Postgresql as dependency, this will also be deployed as a statefulset by default.
If you want to manage your own PVC you can simply pass the PVC name to the chart.
```yaml
persistence:
enabled: true
existingClaim: MyAwesomeGiteaClaim
```
In case that peristence 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:
```yaml
postgresql:
persistence:
enabled: true
existingClaim: MyAwesomeGiteaPostgresClaim
```
Mysql also handles persistence the same, even though it is not deployed as a statefulset.
You can interact with the postgres settings as displayed in the following example:
```yaml
mysql:
persistence:
enabled: true
existingClaim: MyAwesomeGiteaMysqlClaim
```
### 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 redeloying the chart.
It is not possible to delete an admin user after it has been created. This has to be done in the ui.
```yaml
gitea:
admin:
username: "MyAwesomeGiteaAdmin"
password: "AReallyAwesomeGiteaPassword"
email: "gi@tea.com"
```
### LDAP Settings
Like the admin user the ldap settings can be updated but also disabled or deleted.
```yaml
gitea:
ldap:
enabled: true
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
```
### Pod Annotations
Annotations can be added to the Gitea pod.
```yaml
gitea:
podAnnotations: {}
```
## Configuration
### Others
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|statefulset.terminationGracePeriodSeconds| Image to start for this pod | gitea/gitea |
|statefulset.env | Additional environment variables to pass to containers | [] |
### Image
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|image.repository| Image to start for this pod | gitea/gitea |
|image.version| Image Version | 1.12.4 |
|image.pullPolicy| Image pull policy | Always |
### Persistence
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|persistence.enabled| Enable persistence for Gitea |true|
|persistence.existingClaim| Use an existing claim to store repository information | |
|persistence.size| Size for persistence to store repo information | 10Gi |
|persistence.accessModes|AccessMode for persistence||
|persistence.storageClass|Storage class for repository persistence||
### Ingress
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|ingress.enabled| enable ingress | false|
|ingress.annotations| add ingress annotations | |
|ingress.hosts| add hosts for ingress as string list | git.example.com |
|ingress.tls|add ingress tls settings|[]|
### Service
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|service.http.type| Kubernetes service type for web traffic | ClusterIP |
|service.http.port| Port for web traffic | 3000 |
|service.ssh.type| Kubernetes service type for ssh traffic | ClusterIP |
|service.ssh.port| Port for ssh traffic | 22 |
|service.ssh.externalTrafficPolicy| If `service.ssh.type` is `NodePort` or `LoadBalancer`, set this to `Local` to enable source IP preservation | |
|service.ssh.externalIPs| SSH service external IP addresses |[]|
|service.ssh.annotations| Additional ssh annotations for the ssh service ||
### Gitea Configuration
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|gitea.config | Everything in app.ini can be configured with this dict. See Examples for more details | {} |
### Memcached BuiltIn
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.
The following parameters are the defaults set by this chart
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|memcached.service.port|Memcached Port| 11211|
### Mysql BuiltIn
Mysql is loaded as a dependency from stable. Configuration can be found from this [website](https://github.com/helm/charts/tree/master/stable/mysql)
The following parameters are the defaults set by this chart
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|mysql.mysqlRootPassword|Password for the root user. Ignored if existing secret is provided|gitea|
|mysql.mysqlUser|Username of new user to create.|gitea|
|mysql.mysqlPassword|Password for the new user. Ignored if existing secret is provided|gitea|
|mysql.mysqlDatabase|Name for new database to create.|gitea|
|mysql.service.port|Port to connect to mysql service|3306|
|mysql.persistence.size|Persistence size for mysql |10Gi|
### Postgresql BuiltIn
Postgresql is loaded as a dependency from bitnami. Configuration can be found from this [Bitnami](https://github.com/bitnami/charts/tree/master/bitnami/postgresql)
The following parameters are the defaults set by this chart
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|postgresql.global.postgresql.postgresqlDatabase| PostgreSQL database (overrides postgresqlDatabase)|gitea|
|postgresql.global.postgresql.postgresqlUsername| PostgreSQL username (overrides postgresqlUsername)|gitea|
|postgresql.global.postgresql.postgresqlPassword| PostgreSQL admin password (overrides postgresqlPassword)|gitea|
|postgresql.global.postgresql.servicePort|PostgreSQL port (overrides service.port)|5432|
|postgresql.persistence.size| PVC Storage Request for PostgreSQL volume |10Gi|
### MariaDB BuiltIn
MariaDB is loaded as a dependency from bitnami. Configuration can be found from this [Bitnami](https://github.com/bitnami/charts/tree/master/bitnami/mariadb)
The following parameters are the defaults set by this chart
| Parameter | Description | Default |
|---------------------|-----------------------------------|------------------------------|
|mariadb.auth.username|Username of new user to create.|gitea|
|mariadb.auth.password|Password for the new user. Ignored if existing secret is provided|gitea|
|mariadb.auth.database|Name for new database to create.|gitea|
|mariadb.auth.rootPassword|Password for the root user.|gitea|
|mariadb.primary.service.port|Port to connect to mariadb service|3306|
|mariadb.primary.persistence.size|Persistence size for mariadb |10Gi|