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Update Readme for secrets use

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Skimpax 2022-10-15 07:55:10 +02:00
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README.md
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@ -18,9 +18,11 @@ docker container run -d \
- `MYSQL_HOST`: The host/ip of your mysql database.
- `MYSQL_PORT`: The port number of your mysql database.
- `MYSQL_USER`: The username of your mysql database.
- `MYSQL_USER_FILE`: The file in container where to find the user of your mysql database (cf. docker secrets). You should use either MYSQL_USER_FILE or MYSQL_USER (see examples below).
- `MYSQL_PASS`: The password of your mysql database.
- `MYSQL_PASS_FILE`: The file in container where to find the password of your mysql database (cf. docker secrets). You should use either MYSQL_PASS_FILE or MYSQL_PASS (see examples below).
- `MYSQL_DATABASE`: The database name to dump. Default: `--all-databases`.
- `MYSQL_DATABASE_FILE`: The file in container where to find the database name in your mysql database (cf. docker secrets). You should use either MYSQL_DATABASE or MYSQL_DATABASE_FILE (see examples below).
- `MYSQLDUMP_OPTS`: Command line arguments to pass to mysqldump (see [mysqldump documentation](https://dev.mysql.com/doc/refman/8.0/en/mysqldump.html)).
- `MYSQL_SSL_OPTS`: Command line arguments to use [SSL](https://dev.mysql.com/doc/refman/5.6/en/using-encrypted-connections.html).
- `CRON_TIME`: The interval of cron job to run mysqldump. `0 3 * * sun` by default, which is every Sunday at 03:00. It uses UTC timezone.
@ -79,17 +81,23 @@ volumes:
The database root password passed to docker container by using [docker secrets](https://docs.docker.com/engine/swarm/).
In example below, docker is in classic 'docker engine mode' (iow. not swarm mode) and secret source is a local file on host filesystem.
In example below, docker is in classic 'docker engine mode' (iow. not swarm mode) and secret sources are local files on host filesystem.
Alternatively, secret can be stored in docker secrets engine (iow. not in host filesystem).
Alternatively, secrets can be stored in docker secrets engine (iow. not in host filesystem).
```yaml
version: "3.7"
secrets:
# Place your secret file somewhere on your host filesystem, with your password inside
mysql_root_password:
# Place your secret file somewhere on your host filesystem, with your password inside
file: ./secrets/mysql_root_password
mysql_user:
file: ./secrets/mysql_user
mysql_password:
file: ./secrets/mysql_password
mysql_database:
file: ./secrets/mysql_database
services:
mariadb:
@ -101,10 +109,15 @@ services:
- data:/var/lib/mysql
- ${VOLUME_PATH}/backup:/backup
environment:
- MYSQL_DATABASE=${DATABASE_NAME}
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/mysql_root_password
- MYSQL_USER_FILE=/run/secrets/mysql_user
- MYSQL_PASSWORD_FILE=/run/secrets/mysql_password
- MYSQL_DATABASE_FILE=/run/secrets/mysql_database
secrets:
- mysql_root_password
- mysql_user
- mysql_password
- mysql_database
restart: unless-stopped
backup:
@ -116,13 +129,18 @@ services:
- ${VOLUME_PATH}/backup:/backup
environment:
- MYSQL_HOST=my_mariadb
- MYSQL_USER=root
- MYSQL_PASS_FILE=/run/secrets/mysql_root_password
# Alternatively to MYSQL_USER_FILE, we can use MYSQL_USER=root to use root user instead
- MYSQL_USER_FILE=/run/secrets/mysql_user
# Alternatively, we can use /run/secrets/mysql_root_password when using root user
- MYSQL_PASS_FILE=/run/secrets/mysql_password
- MYSQL_DATABASE_FILE=/run/secrets/mysql_database
- MAX_BACKUPS=10
- INIT_BACKUP=1
- CRON_TIME=0 0 * * *
secrets:
- mysql_root_password
- mysql_user
- mysql_password
- mysql_database
restart: unless-stopped
volumes: