ポイントは？

起動が早い(20秒程度)
container-registry.oracle.comにDockerイメージがある

早速試してみよう

docker composeの場合

compose.yml

# https://github.com/compose-spec/compose-spec/blob/master/schema/compose-spec.json
services:
  oracle:
    image: container-registry.oracle.com/database/free:23.2.0.0
    ports:
      - target: 1521
        published: 1521
    environment:
      ORACLE_CHARACTERSET: AL32UTF8
      ORACLE_PWD: OracleV23!
    volumes:
      - type: volume
        source: oradata23
        target: /opt/oracle/oradata

volumes:
  oradata23:

GtiLabの場合

.gitlab-ci.yml

variables:
  ORACLE_PWDS: "OracleV23!"

test:
  needs: []
  services:
    - name: container-registry.oracle.com/database/free:23.2.0.0
      alias: free23c
      pull_policy: if-not-present
      variables:
        ORACLE_CHARACTERSET: AL32UTF8
        ORACLE_PWD: $ORACLE_PWDS
  image: 
    name: container-registry.oracle.com/database/sqlcl:23.1.0
    entrypoint: [""]
    pull_policy: if-not-present
  script:
    # 少し待たないと起動が間に合わない(Error Message = ORA-01033: ORACLE initialization or shutdown in progress)
    - sleep 20
    - cat ./silent.sql
    - sql system/$ORACLE_PWDS@free23c:1521/FREE @silent.sql

出力