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Add Gitea setup documentation, environment configuration, and Docker Compose files

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Peter Wood
2025-04-30 12:54:39 -04:00
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Okay, let's switch gears to run Gitea using Docker and Docker Compose. This is generally the recommended approach as it isolates Gitea and its dependencies.
We'll still create a user on the *host* system to own the data volumes, ensuring correct permissions *outside* the container. The Gitea container itself runs internally as a user (usually `git`, UID/GID 1000 by default in the official image), and Docker maps the volume permissions.
**Key Components:**
1. **`docker-compose.yml`:** Defines the Gitea service and potentially a database service (e.g., PostgreSQL).
2. **Host Directory Structure:** Directories on the host machine to store persistent Gitea data (repos, config, database files, logs).
3. **Host User (`git`):** A user on the host system to own these directories, matching the UID/GID used inside the container.
4. **`app.ini`:** The Gitea configuration file, placed in the host directory structure to be mounted into the container.
**Steps:**
**1. Create Host User and Group (if they don't exist)**
We need a user and group on the host machine. We'll use the standard non-privileged UID/GID `1000`, which the official Gitea Docker image typically uses internally for its `git` user.
```bash
# Run these commands with sudo
sudo groupadd --gid 1000 git || echo "Group git (GID 1000) likely already exists."
sudo useradd --system --uid 1010 --gid 1010 --comment "Gitea Docker User" --shell /usr/sbin/nologin --home /opt/gitea git || echo "User git (UID 1010) likely already exists."
# Verify (optional)
id git
```
* If UID/GID 1000 is already taken on your system, choose another (e.g., 1001) and make sure to specify it in the `docker-compose.yml` using `user: UID:GID`. However, sticking to 1000 is often simplest if possible.
* `--shell /usr/sbin/nologin` prevents this user from being used for interactive logins.
* `--home /opt/gitea` sets a nominal home directory, though we won't rely on it directly.
**2. Create Host Directory Structure and Initial `app.ini`**
We'll create a directory (e.g., `/opt/gitea`) on the host to hold all persistent data and configuration.
```bash
#!/bin/bash
# Exit immediately if a command exits with a non-zero status.
set -e
# --- Configuration ---
HOST_GITEA_ROOT="/opt/gitea" # Or choose another location like /srv/gitea
HOST_GITEA_DATA_DIR="${HOST_GITEA_ROOT}/data"
HOST_GITEA_CONFIG_DIR="${HOST_GITEA_ROOT}/config" # Gitea image expects config in /data/gitea/conf
HOST_GITEA_LOG_DIR="${HOST_GITEA_ROOT}/log" # We'll mount this separately for clarity
HOST_USER_UID=1010 # Must match the UID used inside the container (or specified in docker-compose)
HOST_USER_GID=1010 # Must match the GID used inside the container (or specified in docker-compose)
# --- Pre-checks ---
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root (or using sudo)"
exit 1
fi
if ! getent passwd "${HOST_USER_UID}" > /dev/null 2>&1; then
echo "ERROR: User with UID ${HOST_USER_UID} does not exist. Please create it first."
exit 1
fi
if ! getent group "${HOST_USER_GID}" > /dev/null 2>&1; then
echo "ERROR: Group with GID ${HOST_USER_GID} does not exist. Please create it first."
exit 1
fi
echo "--- Gitea Docker Host Setup ---"
# --- Create Directories ---
echo "[1/3] Creating host directories in ${HOST_GITEA_ROOT}..."
mkdir -pv "${HOST_GITEA_DATA_DIR}"
mkdir -pv "${HOST_GITEA_CONFIG_DIR}"
mkdir -pv "${HOST_GITEA_LOG_DIR}"
echo "Host directories created."
# --- Create Minimal app.ini ---
# Note: Gitea container expects app.ini at /data/gitea/conf/app.ini
# We will mount HOST_GITEA_CONFIG_DIR to /etc/gitea for easier access,
# but Gitea might ignore it if /data/gitea/conf/app.ini exists from the volume mount.
# A safer approach is often to let Gitea create the first config inside the /data mount
# and then modify it, or mount the specific file. Let's mount the dir /etc/gitea for now.
GITEA_CONF_FILE="${HOST_GITEA_CONFIG_DIR}/app.ini"
echo "[2/3] Creating minimal configuration file: ${GITEA_CONF_FILE}..."
cat << EOF > "${GITEA_CONF_FILE}"
; Example Gitea Configuration File for Docker
; Paths here usually refer to locations INSIDE the container.
; For details, see: https://docs.gitea.com/administration/config-cheat-sheet
APP_NAME = Gitea Docker
RUN_USER = git ; User inside the container
RUN_MODE = prod
[server]
DOMAIN = git.ptrwd.com ; CHANGE THIS to your actual domain/IP
HTTP_PORT = 3000 ; Port inside the container
ROOT_URL = http://git.ptrwd.com:3000/ ; CHANGE THIS along with DOMAIN
DISABLE_SSH = false
SSH_DOMAIN = %(DOMAIN)s ; Use value from DOMAIN
SSH_PORT = 22 ; Port inside the container (we map 2222 to this externally)
SSH_LISTEN_PORT = 22 ; Make built-in SSH listen on port 22 inside the container
START_SSH_SERVER = true ; Use the built-in SSH server
LFS_START_SERVER = true
LFS_CONTENT_PATH = /data/gitea/lfs ; Path inside the container
[repository]
ROOT = /data/git/gitea-repositories ; Path inside the container
[log]
ROOT_PATH = /data/log ; Path inside container (maps to HOST_GITEA_LOG_DIR)
MODE = console,file ; Log to console (for docker logs) and file
LEVEL = Info
[database]
; === IMPORTANT: Configure your database ===
; Option 1: SQLite3 (Simplest, place DB inside the data volume)
DB_TYPE = sqlite3
PATH = /data/gitea/gitea.db ; Path inside the container
;
; Option 2: PostgreSQL (Recommended for production, use docker-compose service name as host)
; DB_TYPE = postgres
; HOST = db:5432 ; 'db' is the service name in docker-compose.yml
; NAME = gitea
; USER = gitea
; PASSWD = 'YOUR_POSTGRES_PASSWORD' ; Use secrets or env vars in real setup
; SSL_MODE = disable
;
; Option 3: MySQL
; DB_TYPE = mysql
; HOST = db:3306 ; 'db' is the service name in docker-compose.yml
; NAME = gitea
; USER = gitea
; PASSWD = 'YOUR_MYSQL_PASSWORD' ; Use secrets or env vars in real setup
; CHARSET = utf8mb4
[service]
REGISTER_EMAIL_CONFIRM = false
ENABLE_NOTIFY_MAIL = false
DISABLE_REGISTRATION = false
ENABLE_CAPTCHA = false
REQUIRE_SIGNIN_VIEW = false
[security]
INSTALL_LOCK = true ; Set to true AFTER first install via web UI
SECRET_KEY = PLEASE_CHANGE_ME_SECRET_KEY_! ; CHANGE THIS! Generate with 'docker exec <container_name> gitea generate secret SECRET_KEY'
INTERNAL_TOKEN = PLEASE_CHANGE_ME_INTERNAL_TOKEN_! ; CHANGE THIS! Generate with 'docker exec <container_name> gitea generate secret INTERNAL_TOKEN'
PASSWORD_HASH_ALGO = pbkdf2 ; Default and recommended
[session]
PROVIDER = file
PROVIDER_CONFIG = /data/sessions ; Path inside the container
[picture]
AVATAR_UPLOAD_PATH = /data/gitea/avatars ; Path inside the container
REPOSITORY_AVATAR_UPLOAD_PATH = /data/gitea/repo-avatars ; Path inside the container
[attachment]
PATH = /data/gitea/attachments ; Path inside the container
EOF
echo "Minimal ${GITEA_CONF_FILE} created."
echo " >> IMPORTANT: Review and edit ${GITEA_CONF_FILE} with your specific settings (DOMAIN, ROOT_URL, Database, Secret Keys)!"
# --- Set Ownership ---
echo "[3/3] Setting ownership for ${HOST_GITEA_ROOT} to ${HOST_USER_UID}:${HOST_USER_GID}..."
chown -R "${HOST_USER_UID}":"${HOST_USER_GID}" "${HOST_GITEA_ROOT}"
# Set permissions (optional, ownership is key for docker volumes)
# chmod -R u+rwX,go= "${HOST_GITEA_ROOT}" # Give owner full control, deny group/others
chmod 750 "${HOST_GITEA_ROOT}" # Owner rwx, group rx, others ---
find "${HOST_GITEA_ROOT}" -type d -exec chmod 750 {} \; # Dirs: owner rwx, group rx
find "${HOST_GITEA_ROOT}" -type f -exec chmod 640 {} \; # Files: owner rw, group r
echo "Ownership and basic permissions set."
echo "--- Host Setup Complete ---"
echo "Next steps:"
echo "1. **CRITICAL:** Edit ${GITEA_CONF_FILE} for your specific needs (Domain, Database, Secrets!)."
echo "2. Create the docker-compose.yml file."
echo "3. Run 'docker compose up -d' in the directory containing docker-compose.yml."
```
**How to use the script:**
1. Save the script (e.g., `setup_docker_gitea_host.sh`).
2. Make it executable: `chmod +x setup_docker_gitea_host.sh`.
3. Run with sudo: `sudo ./setup_docker_gitea_host.sh`.
4. **Crucially, edit the generated `/opt/gitea/config/app.ini` file** with your actual domain, database choice, and generate/set real secret keys *before* starting the container.
**3. Create `docker-compose.yml`**
Create this file in a convenient location (e.g., in `/opt/gitea` or a dedicated project directory). This example uses PostgreSQL, which is recommended for production.
```yaml
# /opt/gitea/docker-compose.yml
# or ~/gitea-docker/docker-compose.yml
networks:
gitea-net:
external: false
services:
gitea:
image: gitea/gitea:latest # Use a specific version tag in production, e.g., :1.21.5
container_name: gitea
restart: always
environment:
# All config is primarily done via app.ini now, but you could pass some simpler ones here
- USER_UID=1010 # Matches the host user created
- USER_GID=1010 # Matches the host group created
- GITEA__database__DB_TYPE=postgres # Example: Overriding app.ini via env var if needed
- GITEA__database__HOST=db:5432 # Using double underscore convention
- GITEA__database__NAME=gitea
- GITEA__database__USER=gitea
- GITEA__database__PASSWD=gitea_password # CHANGE THIS! Use docker secrets ideally
networks:
- gitea-net
volumes:
# Mount the main data directory from the host
- ./data:/data # Maps host's ./data (relative to compose file) to container's /data
# Mount the config directory separately (optional, but explicit)
- ./config:/etc/gitea # Maps host's ./config to container's /etc/gitea
# Mount log directory
- ./log:/data/log # Maps host's ./log to container's /data/log (matches app.ini)
# Timezone consistency
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro
ports:
- "3000:3000" # Map host port 3000 to container port 3000 (HTTP)
- "2222:22" # Map host port 2222 to container port 22 (SSH)
depends_on:
db:
condition: service_healthy # Wait for postgres to be healthy
db:
image: postgres:15 # Use a specific version
container_name: gitea-db
restart: always
environment:
- POSTGRES_USER=gitea # CHANGE THIS if needed
- POSTGRES_PASSWORD=gitea_password # CHANGE THIS! Must match GITEA__database__PASSWD
- POSTGRES_DB=gitea # CHANGE THIS if needed
networks:
- gitea-net
volumes:
# Persist postgres data on the host - create a 'postgres' dir next to 'data', 'config', 'log'
- ./postgres:/var/lib/postgresql/data
healthcheck:
# Basic check to see if postgres is ready to accept connections
test: ["CMD-SHELL", "pg_isready -U $$POSTGRES_USER -d $$POSTGRES_DB"]
interval: 10s
timeout: 5s
retries: 5
volumes:
gitea_data:
gitea_config:
postgres_data:
```
**Explanation:**
* **`user: "1000:1000"` (Optional but good practice):** You can explicitly add this under the `gitea:` service definition to force the container process to run as UID/GID 1000, ensuring it matches the host directory ownership. The official image usually handles this, but being explicit can prevent permission issues.
* **Volumes (`./data:/data`, etc.):** We use *bind mounts*. This maps the directories we created on the host (`/opt/gitea/data`, `/opt/gitea/config`, etc.) directly into the specified paths inside the container. Docker uses the ownership we set on the host directories (`chown 1000:1000`).
* **`app.ini` Location:** The Gitea image typically looks for `app.ini` within its data directory (`/data/gitea/conf/app.ini`). By mounting `./config:/etc/gitea` and `./data:/data`, the container *should* find the config. If you have issues, you might need to adjust the volume mount for config or ensure the `app.ini` is placed at `/opt/gitea/data/gitea/conf/app.ini` on the host *before* starting. Mounting `/etc/gitea` is often cleaner if the image respects `GITEA_CUSTOM`. For simplicity, the setup script places it in `./config`, matching the volume mount. Adjust if Gitea doesn't pick it up.
* **Database:** The `db` service uses the official Postgres image. Its data is persisted in `./postgres` on the host. The Gitea container connects to it using the service name `db` as the hostname. **Change the default passwords!**
* **Ports:** `3000:3000` maps the web UI port. `2222:22` maps host port 2222 to the container's SSH port 22 (make sure your host's firewall allows port 2222).
* **Networks:** A dedicated network `gitea-net` allows the containers to communicate easily using service names (`gitea`, `db`).
* **Healthcheck:** Ensures Gitea only starts *after* PostgreSQL is ready.
**4. Running Gitea**
1. Navigate to the directory where you saved `docker-compose.yml` (e.g., `/opt/gitea`).
2. Ensure you have edited `/opt/gitea/config/app.ini` appropriately (Domain, DB, **Secrets**). Generate secrets using `docker run --rm gitea/gitea:latest gitea generate secret SECRET_KEY` etc., if needed.
3. Start the services in detached mode:
```bash
cd /opt/gitea
docker compose up -d
```
4. Check the logs:
```bash
docker compose logs -f gitea
docker compose logs -f db
```
5. Access Gitea in your browser at `http://<your-host-ip-or-domain>:3000`.
6. Clone via SSH using `ssh://git@<your-host-ip-or-domain>:2222/user/repo.git`.
This Docker setup provides isolation, easier dependency management (database), and uses host volumes with correct permissions managed by the `git` (UID/GID 1000) user on the host.

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# Gitea
## Why the fuck did I choose to run this?
I have no idea and it's giving me problems when I try to set it up but I've tried several times now and I can't give up!
## Installation tutorial
In video form!
🔗 <https://www.youtube.com/watch?v=Kg0ct2lBUVg>

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POSTGRES_PORT=5432 POSTGRES_PORT=5432
POSTGRES_DB=gitea POSTGRES_DB=gitea
POSTGRES_USER= POSTGRES_USER=
POSTGRES_PASSWORD= POSTGRES_PASSWORD=
SSH_PORT="2221"
WEB_PORT="3200"

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APP_NAME = Gitea: Git with a cup of tea
RUN_MODE = prod
RUN_USER = git
WORK_PATH = /data/gitea
[repository]
ROOT = /data/git/repositories
[repository.local]
LOCAL_COPY_PATH = /data/gitea/tmp/local-repo
[repository.upload]
TEMP_PATH = /data/gitea/uploads
[server]
APP_DATA_PATH = /data/gitea
DOMAIN = git.ptrwd.com
SSH_DOMAIN = git.ptrwd.com
HTTP_PORT = 3000
ROOT_URL = https://git.ptrwd.com
DISABLE_SSH = false
SSH_PORT = 2221
SSH_LISTEN_PORT = 22
LFS_START_SERVER = true
LFS_JWT_SECRET = cfXD6Y5d3JrMXWgABh-eUtMd3R9Eu03wqNwc_g8BBSM
OFFLINE_MODE = true
[database]
PATH = /data/gitea/gitea.db
DB_TYPE = postgres
HOST = db:5432
NAME = gitea
USER = gitea
PASSWD = HfBdjQ0Ug2pF5uggkArxI9I0
LOG_SQL = false
SCHEMA =
SSL_MODE = disable
[indexer]
ISSUE_INDEXER_PATH = /data/gitea/indexers/issues.bleve
[session]
PROVIDER_CONFIG = /data/gitea/sessions
PROVIDER = file
[picture]
AVATAR_UPLOAD_PATH = /data/gitea/avatars
REPOSITORY_AVATAR_UPLOAD_PATH = /data/gitea/repo-avatars
[attachment]
PATH = /data/gitea/attachments
[log]
MODE = console
LEVEL = info
ROOT_PATH = /data/gitea/log
[security]
INSTALL_LOCK = true
SECRET_KEY =
REVERSE_PROXY_LIMIT = 1
REVERSE_PROXY_TRUSTED_PROXIES = *
INTERNAL_TOKEN = eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE3NDU5NjE2ODJ9.QmA5imRR3NRtpUCjXkMQeoYD4i0fQ8FT92UD7cYX4Go
PASSWORD_HASH_ALGO = pbkdf2
[service]
DISABLE_REGISTRATION = true
REQUIRE_SIGNIN_VIEW = false
REGISTER_EMAIL_CONFIRM = false
ENABLE_NOTIFY_MAIL = true
ALLOW_ONLY_EXTERNAL_REGISTRATION = false
ENABLE_CAPTCHA = false
DEFAULT_KEEP_EMAIL_PRIVATE = false
DEFAULT_ALLOW_CREATE_ORGANIZATION = true
DEFAULT_ENABLE_TIMETRACKING = false
NO_REPLY_ADDRESS = noreply.git.ptrwd.com
[lfs]
PATH = /data/git/lfs
[mailer]
ENABLED = true
SMTP_ADDR = smtp.fastmail.com
SMTP_PORT = 465
FROM = git@thewood.email
USER = peter@peterwood.dev
PASSWD = 8k3t7v9369622j6g
[openid]
ENABLE_OPENID_SIGNIN = false
ENABLE_OPENID_SIGNUP = false
[cron.update_checker]
ENABLED = false
[repository.pull-request]
DEFAULT_MERGE_STYLE = merge
[repository.signing]
DEFAULT_TRUST_MODEL = committer
[oauth2]
JWT_SECRET = jO3fsrBXoFqCNU59k4hkZI_xw1K8ofkDr3wLFkdS5EU

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---
services: services:
server: server:
image: gitea/gitea:latest image: gitea/gitea:latest
container_name: gitea-server container_name: gitea-server
environment: environment:
- USER_UID=1000 - USER_UID=121 # (europa) id -u git
- USER_GID=1000 - USER_GID=65534 # (europa) id -g git
- GITEA__database__DB_TYPE=postgres - GITEA__database__DB_TYPE=postgres
- GITEA__database__HOST=${POSTGRES_HOST:-db}:${POSTGRES_PORT:-5432} - GITEA__database__HOST=${POSTGRES_HOST:-db}:${POSTGRES_PORT:-5432}
- GITEA__database__NAME=${POSTGRES_DB:?POSTGRES_DB not set} - GITEA__database__NAME=${POSTGRES_DB:?POSTGRES_DB not set}
- GITEA__database__USER=${POSTGRES_USER:?POSTGRES_USER not set} - GITEA__database__USER=${POSTGRES_USER:?POSTGRES_USER not set}
- GITEA__database__PASSWD=${POSTGRES_PASSWORD:?POSTGRES_PASSWORD not set} - GITEA__database__PASSWD=${POSTGRES_PASSWORD:?POSTGRES_PASSWORD not set}
- GITEA__server__SSH_PORT=2221 - GITEA__server__SSH_PORT=${SSH_PORT}
- GITEA__server__ROOT_URL=https://git.ptrwd.com - GITEA__server__ROOT_URL=https://git.ptrwd.com
# --> (Optional) When using traefik... networks:
# networks: - backend
# - frontend
# <--
# --> (Optional) When using an internal database...
# - backend
# <--
volumes: volumes:
- gitea-data:/data - gitea-data:/data
- /etc/timezone:/etc/timezone:ro - /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro - /etc/localtime:/etc/localtime:ro
- /home/git/.ssh/:/data/git/.ssh
ports: ports:
- "3200:3000" - ${WEB_PORT}:3000
- "2221:22" - ${SSH_PORT}:22
depends_on: depends_on:
- db - db
restart: unless-stopped restart: unless-stopped
db:
db: image: postgres:14
image: postgres:14 container_name: gitea-db
container_name: gitea-db environment:
environment: - POSTGRES_USER=${POSTGRES_USER:?POSTGRES_USER not set}
- POSTGRES_USER=${POSTGRES_USER:?POSTGRES_USER not set} - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?POSTGRES_PASSWORD not set}
- POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?POSTGRES_PASSWORD not set} - POSTGRES_DB=${POSTGRES_DB:?POSTGRES_DB not set}
- POSTGRES_DB=${POSTGRES_DB:?POSTGRES_DB not set} networks:
networks: - backend
- backend volumes:
volumes: - gitea-db:/var/lib/postgresql/data
- gitea-db:/var/lib/postgresql/data restart: unless-stopped
restart: unless-stopped
networks:
backend:
external: true
volumes: volumes:
gitea-data: gitea-data:
driver: local driver: local
backend: gitea-db:
external: true driver: local