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  • 使用docker出现的一些问题

    ①无法下载镜像

    下载镜像如返回如下信息:

    Get https://registry-1.docker.io/v2/: x509: certificate is valid for pss-cep-authtoken.asurionmobile.com, pss-cep-campaignrest.asurionmobile.com, pss-cep-campauto.asurionmobile.com, pss-cep-campaignweb.asurionmobile.com, pss-cep-criterialoader.asurionmobile.com, pss-cep-csvloader.asurionmobile.com, pss-cep-datalookupservice.asurionmobile.com, pss-cep-dbmigrationapi.asurionmobile.com, pss-cep-deviceregister.asurionmobile.com, pss-cep-dynamicdataapi.asurionmobile.com, pss-cep-enrollmentfeedprocesor.asurionmobile.com, pss-cep-eventforapi.asurionmobile.com, pss-cep-gatewayapi.asurionmobile.com, pss-cep-history-api.asurionmobile.com, pss-cep-jobreader.asurionmobile.com, pss-cep-notificationapi.asurionmobile.com, pss-cep-preferencesapi.asurionmobile.com, pss-cep-refloader.asurionmobile.com, pss-cep-servertemplateprocessor.asurionmobile.com, pss-cep-ssloader.asurionmobile.com, pss-cep-schedulerapi.asurionmobile.com, pss-cep-smsgatewayapi.asurionmobile.com, pss-dis-supportviewapi.asurionmobile.com, not registry-1.docker.io

    解决办法:

    openssl genrsa -out client.key 4096

    openssl req -new -x509 -text -key client.key -out client.key

    mv client.* /usr/local/share/ca-certificate

    systemctl restart docker

    前端时间更新了openssl,可能是这个原因导致的,具体原因以后再分析。

    ②Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?

    #一次性的,不设置DOCKER_HOST
    unset DOCKER_HOST
    
    
    vi ~/.bashrc
    # 在最下面添加一行:
    export DOCKER_HOST='unix:///var/run/docker.sock'
    source .bashrc

    ③docker部署服务报:WARNING:IPv4 forwarding is disabled. Networking will not work.

    vi /etc/sysctl.conf
    
    # 开启路由功能
    net.ipv4.ip_forward=1
    
    # 重启network服务
    systemctl restart network && systemctl restart docker
    
    #查看是否修改成功 (备注:返回1,就是成功)
    [root@docker-node2 ~]# sysctl net.ipv4.ip_forward
    net.ipv4.ip_forward = 1
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  • 原文地址:https://www.cnblogs.com/cpw6/p/12167902.html
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