docker的部署会遇到什么问题（Docker相关异常问题汇总）

[root@centos-101 ~]# journalctl -u docker.service

[root@centos-101 ~]# systemctl status docker -l

解决办法：

在docker compose yaml 文件相同目录下，创建一个 .env 文件，添加如下配置：

COMPOSE_CONVERT_WINDOWS_PATHS=1

参考链接：

https://github.com/docker/for-win/issues/1829#issuecomment-376328022

https://stackoverflow.com/questions/49507912/docker-jwilder-nginx-proxy-container-create-issue

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2. 通过 journalctl -xe 查看到的异常信息-/var/lib/docker 包含了多种有效的graphdrivers: devicemapper，overly；请清除或者显式选择storage driver。

6月 06 13:50:21 local dockerd[22018]: time="2018-06-06T13:50:21.016185408 08:00" level=warning msg="failed to rename /var/lib/docker/tmp for background deletion: rename /var/lib/docker/tmp /var/lib/docker/tmp-old: file exists. Deleting synchronously"

6月 06 13:50:21 local dockerd[22018]: time="2018-06-06T13:50:21.019150299 08:00" level=warning msg="overlay: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior. Reformat the filesystem with ftype=1 to enable d_type suppo

6月 06 13:50:21 local dockerd[22018]: Error starting daemon: error initializing graphdriver: /var/lib/docker contains several valid graphdrivers: devicemapper, overlay; Please cleanup or explicitly choose storage driver (-s <DRIVER>)

6月 06 13:50:21 local systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE

6月 06 13:50:21 local systemd[1]: Failed to start Docker Application Container Engine.

-- Subject: Unit docker.service has failed

-- Defined-By: systemd

-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

--

-- Unit docker.service has failed.

--

-- The result is failed.

6月 06 13:50:21 local systemd[1]: Unit docker.service entered failed state.

6月 06 13:50:21 local systemd[1]: docker.service failed.

6月 06 13:50:21 local systemd[1]: docker.service holdoff time over, scheduling restart.

6月 06 13:50:21 local systemd[1]: start request repeated too quickly for docker.service

6月 06 13:50:21 local systemd[1]: Failed to start Docker Application Container Engine.

-- Subject: Unit docker.service has failed

-- Defined-By: systemd

-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

--

-- Unit docker.service has failed.

--

-- The result is failed.

6月 06 13:50:21 local systemd[1]: Unit docker.service entered failed state.

6月 06 13:50:21 local systemd[1]: docker.service failed.

Error starting daemon: error initializing graphdriver: \"/var/lib/docker\" contains several valid graphdrivers: devicemapper, overlay; Please cleanup or explicitly choose storage driver (-s <DRIVER>)

到/var/lib/docker 目录查看，根据情况，将下面的overlay或者devicemapper文件夹删掉即可。这种情况发生在使用采用dc/os安装后，原有的devicemapper模式修改成了overlay，但是docker同时只能支持一种存储模式。

解决办法：

[root@local ~]# rm -r -f /var/lib/docker/overlay

[root@local ~]# ls /var/lib/docker

builder containerd containers devicemapper image network plugins runtimes swarm tmp tmp-old trust volumes

[root@local ~]# systemctl start docker.service

[root@local ~]# docker version

3. docker swarm join 报错 -- 证书过期或者还没有生效

[peter@minion ~]$ docker swarm join --token SWMTKN-1-3mj5po3c7o04le7quhkdhz6pm9b8ziv3qe0u7hx0hrgxsnaram-0p1f40vtehanu6ugw8ug2wasy 10.0.0.10:2377

Error response from daemon: error while validating Root CA Certificate: x509: certificate has expired or is not yet valid

原理：docker swarm node之间是加密传输，docker swarm init时会创建CA证书。这里提示证书过期或者还没有生效，可能是主机当前时间不对。

[root@centos103 ~]# date

Mon Jun 11 03:22:46 CST 2018

[root@centos103 ~]# ntpdate time.nist.gov

11 Jun 13:26:28 ntpdate[16620]: step time server 129.6.15.30 offset 36172.907214 sec

[root@centos103 ~]# date

Mon Jun 11 13:27:01 CST 2018

解决：sudo ntpdate time.nist.gov 同步一下时间

http://www.cnblogs.com/Peter2014/p/7728762.html

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WARNING: ipv4 forwarding is disabled. Networking will not work.

https://blog.csdn.net/yjk13703623757/article/details/68939183

问题：

创建容器的时候报错WARNING: IPv4 forwarding is disabled. Networking will not work.

# docker run -it -p 30001:22 --name=centos-ssh centos /bin/bash

WARNING: IPv4 forwarding is disabled. Networking will not work.

解决办法：

# vim /usr/lib/sysctl.d/00-system.conf

添加如下代码：

net.ipv4.ip_forward=1

重启network服务

# systemctl restart network

完成以后，删除错误的容器，再次创建新容器，就不再报错了。

[root@centos103 ~]# vim /usr/lib/sysctl.d/00-system.conf

# Kernel sysctl configuration file

#

# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and

# sysctl.conf(5) for more details.

# Enable netfilter on bridges.

net.bridge.bridge-nf-call-ip6tables = 1

net.bridge.bridge-nf-call-iptables = 1

net.bridge.bridge-nf-call-arptables = 1

net.ipv4.ip_forward=1

修改完成之后，执行下面的命令，是修改立即生效：

sysctl --system

docker WARNING: bridge-nf-call-iptables is disabled 处理 --- 参考上面的解决措施。

查看是否修改成功：

[root@etcd1 volumes]# sysctl net.ipv4.ip_forward

net.ipv4.ip_forward = 1

,