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[Documentation] Simplify docker-compose documentation + example (#468) 

* simplify docker-compose docs + example

* Change note about reverse proxy, add traefik

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docs/installation_guide/docker.md
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# Docker
The Official GoToSocial docker images are provided through [docker hub](https://hub.docker.com/r/superseriousbusiness/gotosocial "docker hub gotosocial").
The official GoToSocial Docker images are provided through [Docker Hub](https://hub.docker.com/r/superseriousbusiness/gotosocial).
GoToSocial can be configured using [Environment Variables](../configuration/index.md#environment-variables) if you wish, allowing your GoToSocial configuration to be embedded inside your docker container configuration.
Docker images are currently available for the following OS + architecture combinations:
## Run with Docker Compose (recommended)
This guide will lead you through the installation with [docker compose](https://docs.docker.com/compose/ "Docker Compose Docs"), so you might want to follow the next Steps.
Linux
- 386
- amd64
- arm6
- arm7
- arm64v8
FreeBSD
- amd64
Before following this guide, you should read the [system requirements](./index.md).
This guide assumes that you're using Linux.
## Run with Docker Compose
You can run GoToSocial using any orchestration system that can manage Docker containers ([Kubernetes](https://kubernetes.io/), [Nomad](https://www.nomadproject.io/), etc).
For simplicity's sake, this guide will lead you through the installation with [Docker Compose](https://docs.docker.com/compose), using SQLite as your database.
### Create a Working Dir
You need a Working Directory in which the data of the PostgreSQL and the GoToSocial container will be located, so create this directory for example with the following command.
The directory can be located where you want it to be later.
```shell
mkdir -p /docker/gotosocial
cd /docker/gotosocial
You need a working directory in which your docker-compose file will be located, and a directory for GoToSocial to store data in, so create these directories with the following command:
```bash
mkdir -p ~/gotosocial/data
```
### Get the latest docker-compose.yaml and config.yaml
You can get an example [docker-compose.yaml](../../example/docker-compose/docker-compose.yaml "Example docker-compose.yaml") and [config.yaml](../../example/config.yaml "Example config.yaml") here, which you can download with wget for example.
```shell
Now change to the working directory you created:
```bash
cd ~/gotosocial
```
### Get the latest docker-compose.yaml
Use `wget` to download the latest [docker-compose.yaml](https://raw.githubusercontent.com/superseriousbusiness/gotosocial/main/example/docker-compose/docker-compose.yaml) example, which we'll customize for our needs:
```bash
wget https://raw.githubusercontent.com/superseriousbusiness/gotosocial/main/example/docker-compose/docker-compose.yaml
wget https://raw.githubusercontent.com/superseriousbusiness/gotosocial/main/example/config.yaml
```
### Edit the docker-compose.yaml
You can modify the docker-compose.yaml to your needs, but in any case you should generate a Postgres password and bind it as environment variable into the postgreSQL container. For this we can write the password directly into the docker-compose.yaml like in the example or we create an [.env file](https://docs.docker.com/compose/environment-variables/#the-env-file "Docker Docs") that will load the environment variables into the container. You may also want to check the current [GoToSocial version](https://github.com/superseriousbusiness/gotosocial/releases) and adjust the image in docker-compose.yaml.
```shell
$EDITOR docker-compose.yaml
```
### Edit the config.yaml
When we want to use the config.yaml, we should make the following changes to config.yaml.
| Config Option | Value |
| --------------- | ------ |
| host | Hostname of your Inctanse e.g. gts.example.com |
| account-domain | Domain to use when federating profiles e.g. gts.example.com |
| trusted-proxies | We need to trust our host machine and the Docker Network e.g.<br>- "127.0.0.1/32"<br>- "10.0.0.0/8"<br>- "172.16.0.0/12"<br>- "192.168.0.0/16" |
| db-address | gotosocial_postgres |
| db-user | gotosocial |
| db-password | same password as postgres environment $POSTGRES_PASSWORD |
Because GoToSocial can be configured using [Environment Variables](../configuration/index.md#environment-variables), we can skip mounting a config.yaml file into the container, to make our configuration simpler. We just need to edit the docker-compose.yaml file to change a few things.
```shell
$EDITOR config.yaml
First open the docker-compose.yaml file in your editor of choice. For example:
```bash
nano docker-compose.yaml
```
Now, you should change the `GTS_HOST` environment variable to the domain you are running GoToSocial on.
If you want to use [LetsEncrypt](../configuration/letsencrypt.md) for ssl certificates (https), you should:
1. Change the value of `GTS_LETSENCRYPT_ENABLED` to `"true"`.
2. Remove the `#` before `- "80:80"` in the `ports` section.
3. (Optional) Set `GTS_LETSENCRYPT_EMAIL_ADDRESS` to a valid email address to receive certificate expiry warnings etc.
### Start GoToSocial
With those small changes out of the way, you can now start GoToSocial with the following command:
```shell
docker-compose up -d
```
After running this command, you should get an output like:
```shell
❯ docker-compose up -d
[+] Running 2/2
⠿ Container docker1-gotosocial_postgres-1 Started
⠿ Container docker1-gotosocial-1 Started
```text
Creating network "gotosocial_gotosocial" with the default driver
Creating gotosocial ... done
```
this names can be used to create your first user described below.
If you want to follow the logs of GoToSocial, you can use:
```bash
docker logs -f gotosocial
```
If everything is OK, you should see something similar to the following:
```text
time=2022-04-19T09:48:35Z level=info msg=connected to SQLITE database
time=2022-04-19T09:48:35Z level=info msg=MIGRATED DATABASE TO group #1 (20211113114307, 20220214175650, 20220305130328, 20220315160814) func=doMigration
time=2022-04-19T09:48:36Z level=info msg=instance account example.org CREATED with id 01EXX0TJ9PPPXF2C4N2MMMVK50
time=2022-04-19T09:48:36Z level=info msg=created instance instance example.org with id 01PQT31C7BZJ1Q2Z4BMEV90ZCV
time=2022-04-19T09:48:36Z level=info msg=media manager cron logger: start[]
time=2022-04-19T09:48:36Z level=info msg=media manager cron logger: schedule[now 2022-04-19 09:48:36.096127852 +0000 UTC entry 1 next 2022-04-20 00:00:00 +0000 UTC]
time=2022-04-19T09:48:36Z level=info msg=started media manager remote cache cleanup job: will run next at 2022-04-20 00:00:00 +0000 UTC
time=2022-04-19T09:48:36Z level=info msg=listening on 0.0.0.0:8080
```
### Create your first User
Take the names from above command `docker-compose up -d` and replace $CONTAINER_NAME with the name e.g. `docker1-gotosocial-1`
Now that GoToSocial is running, you can execute commands inside the running container to create, confirm, and promote your admin user.
```shell
# Creates a User
docker exec -ti $CONTAINER_NAME /gotosocial/gotosocial --config-path /config/config.yaml admin account create --username $USERNAME --email $USEREMAIL --password $SuperSecurePassword
# Confirms the User, so that the User can LogIn
docker exec -ti $CONTAINER_NAME /gotosocial/gotosocial --config-path /config/config.yaml admin account confirm --username $USERNAME
# Makes the User to an Admin
docker exec -ti $CONTAINER_NAME/gotosocial/gotosocial --config-path /config/config.yaml admin account promote --username $USERNAME
First create a user (replace the username, email, and password with appropriate values):
```bash
docker exec -it gotosocial /gotosocial/gotosocial admin account create --username some_username --email someone@example.org --password some_very_good_password
```
#### Lost the Name of the Container
If you forgot what the container name of your GoToSocial container was, you can figure it out with the command `docker ps -f NAME=gotosocial`.
If you execute the command, you will get an output similar to the following:
Now confirm the user, replacing username with the value you used in the command above.
```shell
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e190f1e6335f superseriousbusiness/gotosocial:$VERSION "/gotosocial/gotosoc…" 12 minutes ago Up 12 minutes 127.0.0.1:8080->8080/tcp docker-compose-gotosocial-1
5a2c56181ada postgres:14-alpine "docker-entrypoint.s…" 22 minutes ago Up 19 minutes 5432/tcp docker-compose-gotosocial_postgres-1
```
Now you take the container name from the container with image superseriousbusiness/gotosocial:$VERSION and build ourselves the following commands.
## Run with Docker Run
You can run GoToSocial direct with `docker run` command.
<details>
<summary>docker run with --env flag</summary>
```shell
docker run -e GTS_PORT='8080' -e GTS_PROTOCOL='https' -e GTS_TRUSTED_PROXIES='0.0.0.0/0' -e GTS_HOST='gotosocial.example.com' -e GTS_ACCOUNT_DOMAIN='gotosocial.example.com' -e GTS_DB_TYPE='sqlite' -e GTS_DB_ADDRESS='/gotosocial/database/sqlite.db' -e GTS_STORAGE_SERVE_PROTOCOL='https' -e GTS_STORAGE_SERVE_HOST='gotosocial.example.com' -e GTS_STORAGE_SERVE_BASE_PATH='/gotosocial/storage' -e GTS_LETSENCRYPT_ENABLED='false' -v $(pwd)/storage/:/gotosocial/storage/ -v $(pwd)/database/:/gotosocial/database/ -p 127.0.0.1:8080:8080 superseriousbusiness/gotosocial:0.2.0
```bash
docker exec -it gotosocial /gotosocial/gotosocial admin account confirm --username some_username
```
</details>
Now promote the user you just created to admin privileges:
<details>
<summary>docker run with .env-file</summary>
```
docker run --env-file ./.env -v $(pwd)/storage/:/gotosocial/storage/ -v $(pwd)/database/:/gotosocial/database/ -p 127.0.0.1:8080:8080 superseriousbusiness/gotosocial:0.2.0
```bash
docker exec -it gotosocial /gotosocial/gotosocial admin account promote --username some_username
```
</details>
When running these commands, you'll get a bit of output like the following:
<details>
<summary>Example .env File</summary>
```shell
$EDITOR .env
```text
time=2022-04-19T09:53:29Z level=info msg=connected to SQLITE database
time=2022-04-19T09:53:29Z level=info msg=there are no new migrations to run func=doMigration
time=2022-04-19T09:53:29Z level=info msg=closing db connection
```
```
GTS_PORT=8080
GTS_PROTOCOL=https
GTS_TRUSTED_PROXIES=127.0.0.1 # should be the host machine and the Docker Network e.g. "127.0.0.1/32", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"
GTS_HOST=gotosocial.example.com
GTS_ACCOUNT_DOMAIN=gotosocial.example.com
GTS_DB_TYPE=sqlite
GTS_DB_ADDRESS=/gotosocial/database/sqlite.db
GTS_STORAGE_SERVE_BASE_PATH=/gotosocial/storage
GTS_LETSENCRYPT_ENABLED=false
```
</details>
This is normal and indicates that the commands ran as expected.
## (optional) Reverse Proxy
### Done
If you want to run other webservers on port 433 or want to add an additional layer of security you might want to use [nginx](./nginx.md) or [Apache httpd](./apache-httpd.md) as reverse proxy
GoToSocial should now be running on your machine! To verify this, open your browser and go to `http://localhost:443`. You should see the GoToSocial landing page. Well done!
## (Optional) Reverse Proxy
If you want to run other webservers on port 443, or want to add an additional layer of security you might want to add [NGINX](https://nginx.org), [Traefik](https://doc.traefik.io/traefik/), or [Apache httpd](https://httpd.apache.org/) into your docker-compose to use as a reverse proxy.

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example/docker-compose/docker-compose.yaml
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services:
gotosocial:
image: superseriousbusiness/gotosocial:0.2.0
user: "1000:1000"
image: superseriousbusiness/gotosocial:latest
container_name: gotosocial
user: 1000:1000
networks:
- gotosocial
ports:
- "127.0.0.1:8080:8080"
volumes:
- ./docker-volumes/data:/gotosocial/storage
- ./config.yaml:/config/config.yaml
command: ["--config-path", "/config/config.yaml"]
depends_on:
- gotosocial_postgres
restart: "always"
gotosocial_postgres:
image: postgres:14-alpine
environment:
POSTGRES_DB: gotosocial
POSTGRES_USER: gotosocial
POSTGRES_PASSWORD: # Create a Password for example with "openssl rand -hex 16"
GTS_HOST: example.org
GTS_DB_TYPE: sqlite
GTS_DB_ADDRESS: /gotosocial/storage/sqlite.db
GTS_LETSENCRYPT_ENABLED: "false"
GTS_LETSENCRYPT_EMAIL_ADDRESS: ""
ports:
- "443:8080"
#- "80:80"
volumes:
- ./docker-volumes/db:/var/lib/postgresql/data
- ~/gotosocial/data:/gotosocial/storage
restart: "always"
networks:
- gotosocial
networks:
gotosocial: