Outline with Keycloak and Let's Encrypt Using Docker Compose

📙 The complete installation guide is available on my website.

❗ Change variables in the .env to meet your requirements.

💡 Note that the .env file should be in the same directory as 01-traefik-outline-letsencrypt-docker-compose.yml, 02-keycloak-outline-docker-compose.yml, and 03-outline-minio-redis-docker-compose.yml.

❗ The value for the OUTLINE_OIDC_CLIENT_SECRET variable can be obtained after installing Keycloak using 02-keycloak-outline-docker-compose.yml.

❗ Additionally, you need to specify your values for OUTLINE_SECRET_KEY and OUTLINE_UTILS_SECRET.

The values for OUTLINE_SECRET_KEY and OUTLINE_UTILS_SECRET can be generated using the command:

openssl rand -hex 32

Create networks for your services before deploying the configuration using the commands:

docker network create traefik-network

docker network create keycloak-network

docker network create outline-network

Deploy Traefik using Docker Compose:

docker compose -f 01-traefik-outline-letsencrypt-docker-compose.yml -p traefik up -d

Deploy Keycloak using Docker Compose:

docker compose -f 02-keycloak-outline-docker-compose.yml -p keycloak up -d

Create a new Realm on Keycloak and name it outline (case sensitive).

Create a Client in the new realm and configure it:

1. Client type: OpenID Connect
2. Client ID: outline (case sensitive)
3. Client authentication: on
4. Authentication flow: uncheck all other options and leave only Standard flow
5. Set URLs:

• In the Root URL field, enter https://outline.heyvaldemar.net/
• In the Home URL field, enter https://outline.heyvaldemar.net/
• In the Valid redirect URIs field, enter https://outline.heyvaldemar.net/*

💡 Please note, outline.heyvaldemar.net is the domain name of my service. Accordingly, you need to specify your domain name, which points to the IP address of your server with the installed Traefik service, which will redirect the request to Outline.

Get a Client secret value on the Credentials tab of the Client that you created.

Specify the OUTLINE_OIDC_CLIENT_SECRET variable in the .env.

Create a user on Keycloak for Outline.

Note that you have to specify an email address and a username.

Set a password for the new user.

Deploy Keycloak using Docker Compose:

docker compose -f 03-outline-minio-redis-docker-compose.yml -p outline up -d

Log in to Outline with the Username or Email specified on the Keycloak.

Backups

The backups-keycloak container in the configuration is responsible for the following:

1. Database Backup: Creates compressed backups of the PostgreSQL database using pg_dump. Customizable backup path, filename pattern, and schedule through variables like KEYCLOAK_POSTGRES_BACKUPS_PATH, KEYCLOAK_POSTGRES_BACKUP_NAME, and KEYCLOAK_BACKUP_INTERVAL.

2. Backup Pruning: Periodically removes backups exceeding a specified age to manage storage. Customizable pruning schedule and age threshold with KEYCLOAK_POSTGRES_BACKUP_PRUNE_DAYS.

The backups-outline container in the configuration is responsible for the following:

1. Application Data Backup: Compresses and stores backups of the application data on the same schedule. Controlled via variables such as OUTLINE_DATA_BACKUPS_PATH, OUTLINE_DATA_BACKUP_NAME, and OUTLINE_BACKUP_INTERVAL.

2. Backup Pruning: Periodically removes backups exceeding a specified age to manage storage. Customizable pruning schedule and age threshold with OUTLINE_DATA_BACKUP_PRUNE_DAYS.

By utilizing these containers, consistent and automated backups of the essential components of your instance are ensured. Moreover, efficient management of backup storage and tailored backup routines can be achieved through easy and flexible configuration using environment variables.

keycloak-restore-database.sh Description

This script facilitates the restoration of a database backup:

1. Identify Containers: It first identifies the service and backups containers by name, finding the appropriate container IDs.

2. List Backups: Displays all available database backups located at the specified backup path.

3. Select Backup: Prompts the user to copy and paste the desired backup name from the list to restore the database.

4. Stop Service: Temporarily stops the service to ensure data consistency during restoration.

5. Restore Database: Executes a sequence of commands to drop the current database, create a new one, and restore it from the selected compressed backup file.

6. Start Service: Restarts the service after the restoration is completed.

To make the keycloak-restore-database.shh script executable, run the following command:

chmod +x keycloak-restore-database.sh

Usage of this script ensures a controlled and guided process to restore the database from an existing backup.

outline-restore-database.sh Description

This script facilitates the restoration of a database backup:

1. Identify Containers: It first identifies the service and backups containers by name, finding the appropriate container IDs.

2. List Backups: Displays all available database backups located at the specified backup path.

3. Select Backup: Prompts the user to copy and paste the desired backup name from the list to restore the database.

4. Stop Service: Temporarily stops the service to ensure data consistency during restoration.

5. Restore Database: Executes a sequence of commands to drop the current database, create a new one, and restore it from the selected compressed backup file.

6. Start Service: Restarts the service after the restoration is completed.

To make the outline-restore-database.shh script executable, run the following command:

chmod +x outline-restore-database.sh

Usage of this script ensures a controlled and guided process to restore the database from an existing backup.

outline-restore-application-data.sh Description

This script is designed to restore the application data:

1. Identify Containers: Similarly to the database restore script, it identifies the service and backups containers by name.

2. List Application Data Backups: Displays all available application data backups at the specified backup path.

3. Select Backup: Asks the user to copy and paste the desired backup name for application data restoration.

4. Stop Service: Stops the service to prevent any conflicts during the restore process.

5. Restore Application Data: Removes the current application data and then extracts the selected backup to the appropriate application data path.

6. Start Service: Restarts the service after the application data has been successfully restored.

To make the outline-restore-application-data.sh script executable, run the following command:

chmod +x outline-restore-application-data.sh

By utilizing this script, you can efficiently restore application data from an existing backup while ensuring proper coordination with the running service.

Author

I’m Vladimir Mikhalev, the Docker Captain, but my friends can call me Valdemar.

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