keycloak 服务中出现 JDBC 驱动程序异常问题

Question

我正在尝试使用外部 mysql database-8 版本配置在 helm-chart 上运行的 keycloak-18。

这是我的舵图文件

values.yaml 文件

image:
  repository: quay.io/keycloak/keycloak
  pullPolicy: IfNotPresent
  # Overrides the image tag whose default is the chart appVersion.
  tag: "18.0.0"
  args: ["start-dev"
       ,"--log-console-color=true"
       ,"--db=mysql"
       ,"--db-username=****"
       ,"--db-password=*****"
       ,"--db-url=jdbc:mysql://194.148.0.57/keycloakblockchain"
      ]

部署文件

- name: {{ .Chart.Name }}
          securityContext:
            {{- toYaml .Values.securityContext | nindent 12 }}
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          args: {{ .Values.args }}

错误

2022-05-05 02:43:50,762 ERROR [org.keycloak.quarkus.runtime.cli.ExecutionExceptionHandler] (main) ERROR: No suitable driver found for jdbc:mysql://194.148.0.57/keycloakblockchain

2022-05-05 02:43:38,765 WARN  [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator] (JPA Startup Thread: keycloak-default) HHH000342: Could not obtain connection to query metadata: java.sql.SQLException: No suitable driver found for jdbc:mysql://194.148.0.57/keycloakblockchain
    at org.h2.jdbcx.JdbcDataSource.getJdbcConnection(JdbcDataSource.java:191)
    at org.h2.jdbcx.JdbcDataSource.getXAConnection(JdbcDataSource.java:352)
    at io.agroal.pool.ConnectionFactory.createConnection(ConnectionFactory.java:216)
    at io.agroal.pool.ConnectionPool$CreateConnectionTask.call(ConnectionPool.java:513)
    at io.agroal.pool.ConnectionPool$CreateConnectionTask.call(ConnectionPool.java:494)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at io.agroal.pool.util.PriorityScheduledExecutor.beforeExecute(PriorityScheduledExecutor.java:75)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1126)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:829)```

Answer 1

尝试删除jdbc:并使用mysql:/代替

"--db-url=mysql://194.148.0.57/keycloakblockchain"

Answer 2

我也有同样的问题。我花了一些时间才注意到在构建生产映像时，我在

"KC_DB=mysql"

中出现了拼写错误。

如果您使用此处的 Dockerfile：https://www.keycloak.org/server/containers

您只需要将

KC_DB

环境变量更改为 mysql。

我的 Docker 文件：

FROM quay.io/keycloak/keycloak:18.0.2 as builder

ENV KC_HEALTH_ENABLED=true
ENV KC_METRICS_ENABLED=true
ENV KC_PROXY=edge
ENV KC_DB=mariadb
ENV KC_DB_URL_PROPERTIES=characterEncoding=UTF-8
ENV KC_TRANSACTION_XA_ENABLED=false
ENV KC_CACHE_CONFIG_FILE=cache-ispn-jdbc-ping.xml

COPY cache-ispn-jdbc-ping.xml /opt/keycloak/conf/cache-ispn-jdbc-ping.xml
RUN curl -sL https://github.com/aerogear/keycloak-metrics-spi/releases/download/2.5.3/keycloak-metrics-spi-2.5.3.jar -o /opt/keycloak/providers/keycloak-metrics-spi-2.5.3.jar
RUN /opt/keycloak/bin/kc.sh build

FROM quay.io/keycloak/keycloak:latest
COPY --from=builder /opt/keycloak/ /opt/keycloak/
WORKDIR /opt/keycloak

ENTRYPOINT ["/opt/keycloak/bin/kc.sh", "start"]

我的docker-compose.yml（我曾经在本地测试过）：

  [...]

  keycloak:
    build:
      context: ./keycloak
      dockerfile: Dockerfile
    container_name: 'keycloak'
    restart: 'no'
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.services.keycloak.loadbalancer.server.port=8080'
      - 'traefik.http.routers.keycloak.entrypoints=http'
      - 'traefik.http.routers.keycloak.rule=Host(`sso.localhost`) || Host(`sso.${HOSTNAME}`)'
      - 'traefik.http.routers.keycloak.service=keycloak@docker'
    environment:
      KC_EXTERNAL_IP: 172.21.2.2
      KC_EXTERNAL_PORT: 9600
      KC_DB_URL_HOST: db-keycloak
      KC_DB_URL_PORT: 3306
      KC_DB_URL_DATABASE: db
      KC_DB_USERNAME: user
      KC_DB_PASSWORD: pass
      KC_PROXY: edge
      KC_HOSTNAME_STRICT: false
      KEYCLOAK_ADMIN: root
      KEYCLOAK_ADMIN_PASSWORD: root
    networks:
      internal:
        ipv4_address: 172.21.2.2
    expose:
      - '8080'
      - '9600'
    ports:
      - '82:8080'
    depends_on:
      - db-keycloak

  [...]