環境

Fedora CoreOS 31.20200113.3.1
Podman 1.7.0
Podman Compose 0.1.5

準備

$ sudo sed -i --follow-symlinks 's/SELINUX=enforcing/SELINUX=permissive/g' /etc/sysconfig/selinux
$ sudo reboot
$ sudo rpm-ostree install python3 -r
$ sudo pip3 install podman-compose
$ mkdir -p ~/.local/bin
$ curl -o ~/.local/bin/podman-compose https://raw.githubusercontent.com/containers/podman-compose/devel/podman_compose.py
$ chmod +x ~/.local/bin/podman-compose

$ mkdir data
$ chmod 777 data

ファイル

docker-compose.yml

version: '3.7'
services:
  mariadb:
      image: mariadb:10.4.12
      restart: always
      volumes:
        - ./data:/var/lib/mysql
      ports:
        - 3306:3306
      environment:
        MYSQL_ROOT_PASSWORD: root
        MYSQL_DATABASE: keycloak
        MYSQL_USER: keycloak
        MYSQL_PASSWORD: password
  keycloak:
      image: jboss/keycloak:8.0.2
      restart: always
      ports:
        - 8080:8080
      environment:
        DB_VENDOR: mariadb
        DB_ADDR: mariadb
        DB_DATABASE: keycloak
        DB_USER: keycloak
        DB_PASSWORD: password
        KEYCLOAK_USER: admin
        KEYCLOAK_PASSWORD: password
      depends_on:
        - mariadb

実行

$ podman-compose up -d
$ podman ps

CONTAINER ID  IMAGE                              COMMAND     CREATED        STATUS            PORTS                   NAMES
9aa7329ab5b3  docker.io/jboss/keycloak:8.0.2     -b 0.0.0.0  2 minutes ago  Up 2 minutes ago  0.0.0.0:3306->3306/tcp  keycloak_keycloak_1
d630bc1c0f7f  docker.io/library/mariadb:10.4.12  mysqld      2 minutes ago  Up 2 minutes ago  0.0.0.0:3306->3306/tcp  keycloak_mariadb_1

$ podman exec -it keycloak_keycloak_1 bash

# Admin CLI コマンドで「SSL required」を「NONE」に変更
# Keycloakのデフォルト設定だと「SSL required」項目により、SSL通信が必須
# HTTP通信で使うために設定を変更
# 管理者ID（ここではadmin）で認証情報を設定する

bash-4.4$ /opt/jboss/keycloak/bin/kcadm.sh config credentials \
--server http://localhost:8080/auth \
--realm master \
--user admin \
--password password

# レルム「master」のSSL requiredを「NONE」に変更
bash-4.4$ /opt/jboss/keycloak/bin/kcadm.sh update realms/master -s sslRequired=NONE

bash-4.4$ exit