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Docker错误汇总.md

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Docker 错误汇总

MacOS 执行 docker login 是报错(采用 ToolBox 方式安装):

Error saving credentials: error storing credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``

Fix:

$ vim ~/.docker/config.json

修改为:

"credStore": ""

证书错误

由于是内网镜像库,证书是自签的,所以本地会出x509错误:

x509: certificate signed by unknown authority

可以修改 /etc/docker/daemon.json,加入以下内容:

"insecure-registries": ["registry.prod.bbdops.com"]

重启docker后就没有错误了!!!

或者 CentOS 下:

将证书复制到系统存放证书目录

cp registry.prod.bbdops.com.crt /etc/pki/ca-trust/source/anchors

注册证书

update-ca-trust

重启docker

systemctl restart docker

删除docker 日志

在linux上,容器日志一般存放在/var/lib/docker/containers/container_id/下面, 以json.log结尾的文件(业务日志)很大。

磁盘容量

docker 启动一个容器后默认根分区大小为10GB,通过docker info可以看见默认大小为10G,有时会不够用需要扩展。

$ docker info | grep Base

driver 错误

错误:

time="2020-10-15T15:57:02.691043891+08:00" level=error msg="[graphdriver] prior storage driver overlay2 failed: driver not supported"
Oct 15 15:57:02 ct1.test.bbdops.com dockerd[20860]: Error starting daemon: error initializing graphdriver: driver not supported

解决方案,在 /etc/docker/daemon.json 中添加:

{
  "storage-driver": "overlay2",
  "storage-opts": [
    "overlay2.override_kernel_check=true"
  ]
}

多个账号使用同一个仓库

默认的 config 是 ~/.config,可以使用另外一个目录来登录:

$ docker --config ~/.docker/wan login --username=wan registry.testing.com
$ docker --config ~/.docker/wan push registry.testing.com/wan/test:0.1

Dockerfile 添加根证书

ADD ca.crt /usr/local/share/ca-certificates/ca.crt
RUN update-ca-certificates