离线安装docker并离线安装应用 (by quqi99)

浅浅的花香味﹌ 2022-10-09 12:24 307阅读 0赞

echo 'step 1 - install offline docker'
    
    wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.7.tgz
    cat << EOF |tee docker.service
    [Unit]
    Description=Docker Application Container Engine
    Documentation=https://docs.docker.com
    After=network-online.target firewalld.service
    Wants=network-online.target
    [Service]
    Type=notify
    # the default is not to use systemd for cgroups because the delegate issues still
    # exists and systemd currently does not support the cgroup feature set required
    # for containers run by docker
    ExecStart=/usr/bin/dockerd
    ExecReload=/bin/kill -s HUP $MAINPID
    # Having non-zero Limit*s causes performance problems due to accounting overhead
    # in the kernel. We recommend using cgroups to do container-local accounting.
    LimitNOFILE=infinity
    LimitNPROC=infinity
    LimitCORE=infinity
    # Uncomment TasksMax if your systemd version supports it.
    # Only systemd 226 and above support this version.
    #TasksMax=infinity
    TimeoutStartSec=0
    # set delegate yes so that systemd does not reset the cgroups of docker containers
    Delegate=yes
    # kill only the docker process, not all processes in the cgroup
    KillMode=process
    # restart the docker process if it exits prematurely
    Restart=on-failure
    StartLimitBurst=3
    StartLimitInterval=60s
    [Install]
    WantedBy=multi-user.target
    EOF
    cat << EOF |tee install.sh
    #!/bin/sh
    tar -xvf \$1
    cp docker/* /usr/bin/
    cp docker.service /etc/systemd/system/
    chmod +x /etc/systemd/system/docker.service
    systemctl daemon-reload
    systemctl start docker
    systemctl enable docker.service
    docker -v
    sudo systemctl status docker
    EOF
    cat << EOF |tee uninstall.sh
    #!/bin/sh
    rm -f /etc/systemd/system/docker.service
    rm -rf /usr/bin/docker*
    systemctl daemon-reload
    EOF
    sudo sh ./install.sh ./docker-20.10.7.tgz
    
    echo 'step 2 - make a test image'
    
    cat << EOF | sudo tee simple-go-http-server.go
    package main
    import (
        "io"
        "log"
        "net/http"
        "os"
        "time")
    
    type myHandler struct{}
    
    func (*myHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
        io.WriteString(w, "ok")
    }
    
    func main() {
        var port string
        port = ":" + os.Args[1]
        srv := &http.Server{
            Addr:         port,
            Handler:      &myHandler{},
            ReadTimeout:  30 * time.Second,
            WriteTimeout: 30 * time.Second,
        }
        log.Fatal(srv.ListenAndServe())
    }
    EOF
    cat << EOF |tee Dockerfile
    FROM golang:latest
    RUN mkdir /app 
    ADD simple-go-http-server.go /app/ 
    WORKDIR /app 
    CMD [ "go", "run", "/app/simple-go-http-server.go", "8080" ]
    EOF
    sudo docker build -t simple-go-http-server .
    
    
    echo 'step 3 - save image to local file'
    
    IMG_ID=$(docker image ls |awk '/simple-go-http-server/ {print $3}')
    # docker save -o images.tar postgres:9.6 mongo:3.4
    docker save $IMG_ID > myapp.tar
    
    echo ' step 4 - load image'
    
    docker load < myapp.tar
    IMG_ID2=$(docker image ls |awk '/none/ {print $3}')
    docker image tag $IMG_ID2 zhhuabj/myapp:latest
    
    echo 'step 5 - test image'
    
    sudo docker run -d --rm --name myapp zhhuabj/myapp:latest
    APP_IP=$(docker inspect myapp |grep '"IPAddress"' |head -n1 |awk -F '"' '{print $4}')
    curl ${APP_IP}:8080