clickhouse-backup 命令的身份验证

问题描述

我有一个 clickhouse 实例正在运行，我在其中安装了 clickhouse-backup。我已经连接到它并且使用这样的自定义用户运行 clickhouse-client 没有问题：

clickhouse-client -u fred --password 12345

但是当我执行 clickhouse-backup tables 时，我得到

can't connect to clickhouse: code: 516,message: default: Authentication Failed: password is incorrect or there is no user with such name. 

如何以自定义用户“fred”的身份运行命令 clickhouse-backup tables？

解决方法

它需要在 config.yml 文件中定义这些凭据：

..
clickhouse:
  username: fred              # CLICKHOUSE_USERNAME
  password: 12345             # CLICKHOUSE_PASSWORD
..

默认配置文件位于/etc/clickhouse-backup/config.yml。

要定义自定义位置，请在 --config 参数中传递它。

---

作为替代方法，可以通过环境变量传递所需的参数。考虑将 clickhouse-backup 作为 docker-container 运行：

# generate a backup plan

sudo docker run --rm -it --network host -v "/var/lib/clickhouse:/var/lib/clickhouse" \
    -e CLICKHOUSE_FREEZE_BY_PART=true \
    -e CLICKHOUSE_USERNAME=user \
    -e CLICKHOUSE_PASSWORD=passw \
    \
    alexakulov/clickhouse-backup:latest create --tables="db.table1_local" "table1 [shard-01]"


# start a backup process

sudo docker run --rm -it --network host -v "/var/lib/clickhouse:/var/lib/clickhouse" \
    -e CLICKHOUSE_USERNAME=user \
    -e CLICKHOUSE_PASSWORD=passw \
    -e REMOTE_STORAGE=gcs \
    -e GCS_BUCKET=gcs-clickhouse-backup-bucket \
    -e GCS_CREDENTIALS_JSON='_credentials_json_' \
    \
    alexakulov/clickhouse-backup:latest upload "table1 [shard-01]"


# remove the local copy of backup

sudo docker run --rm -it --network host -v "/var/lib/clickhouse:/var/lib/clickhouse" \
    \
    alexakulov/clickhouse-backup:latest delete local "table1 [shard-01]"