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docker环境搭建_openmetadata 安装部署

作者：你好赵伟 | 2024-07-07 01:03:56

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openmetadata 安装部署
    Docker 包括三个基本概念
    1.镜像（Image）
    2.容器（Container）
    3.仓库（Repository）

    docker的特性：
    1.文件系统隔离：每个进程容器运行在完全独立的根文件系统里。
    2.资源隔离：可以使用cgroup为每个进程容器分配不同的系统资源，例如CPU和内存。
    3.网络隔离：每个进程容器运行在自己的网络命名空间里，拥有自己的虚拟接口和IP地址。
    4.写时复制：采用写时复制方式创建根文件系统，这让部署变得极其快捷，并且节省内存和硬盘空间。
    5.日志记录：Docker将会收集和记录每个进程容器的标准流（stdout/stderr/stdin），用于实时检索或批量检索。
    6.变更管理：容器文件系统的变更可以提交到新的映像中，并可重复使用以创建更多的容器。无需使用模板或手动配置。
    7.交互式Shell：Docker可以分配一个虚拟终端并关联到任何容器的标准输入上，例如运行一个一次性交互shell。
    docker安装与启动

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yum install -y epel-release
yum install docker   //安装的版本比较老。
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使用该方法在线安装最新版本的docker

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[root@soft Desktop]#  curl -fsSL https://get.docker.com/ | sh
+ sh -c 'sleep 3; yum -y -q install docker-engine'
docker-engine-1.12.1-1.el7.centos.x86_64.rpm             |  19 MB     04:11     
No Presto metadata available for docker-experimental-repo

If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:

  sudo usermod -aG docker your-user

Remember that you will have to log out and back in for this to take effect!

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安装完docker后可用以下命令查看相关的docker信息：

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[root@localhost /]# docker version
Client:
 Version:         1.10.3
 API version:     1.22
 Package version: docker-common-1.10.3-46.el7.centos.10.x86_64
 Go version:      go1.6.3
 Git commit:      d381c64-unsupported
 Built:           Thu Aug  4 13:21:17 2016
 OS/Arch:         linux/amd64

Server:
 Version:         1.10.3
 API version:     1.22
 Package version: docker-common-1.10.3-46.el7.centos.10.x86_64
 Go version:      go1.6.3
 Git commit:      d381c64-unsupported
 Built:           Thu Aug  4 13:21:17 2016
 OS/Arch:         linux/amd64

[root@localhost /]# docker info   //本地已有一个docker镜像
Containers: 2
 Running: 1
 Paused: 0
 Stopped: 1
Images: 1
Server Version: 1.10.3
Storage Driver: devicemapper
 Pool Name: docker-253:0-1792087-pool
 Pool Blocksize: 65.54 kB
 Base Device Size: 10.74 GB
 Backing Filesystem: xfs
 Data file: /dev/loop0
 Metadata file: /dev/loop1
 Data Space Used: 1.083 GB
 Data Space Total: 107.4 GB
 Data Space Available: 25.5 GB
 Metadata Space Used: 1.278 MB
 Metadata Space Total: 2.147 GB
 Metadata Space Available: 2.146 GB
 Udev Sync Supported: true
 Deferred Removal Enabled: false
 Deferred Deletion Enabled: false
 Deferred Deleted Device Count: 0
 Data loop file: /var/lib/docker/devicemapper/devicemapper/data
 WARNING: Usage of loopback devices is strongly discouraged for production use. Either use `--storage-opt dm.thinpooldev` or use `--storage-opt dm.no_warn_on_loop_devices=true` to suppress this warning.
 Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
 Library Version: 1.02.107-RHEL7 (2016-06-09)
Execution Driver: native-0.2
Logging Driver: journald
Plugins: 
 Volume: local
 Network: bridge null host
Kernel Version: 3.10.0-327.28.2.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
Number of Docker Hooks: 2
CPUs: 16
Total Memory: 15.66 GiB
Name: localhost.localdomain
ID: TWV7:7OXE:GGAN:MYFO:ERWM:FC2G:KCWJ:LSU6:TA4Y:Q6J6:ZK3I:GDB4
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
Registries: docker.io (secure)

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docker镜像下载
搜索可用的centos的docker镜像

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[root@localhost /]#  docker search centos//搜索centos镜像
INDEX       NAME                                    DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/centos                        The official build of CentOS.                   2531      [OK]       
docker.io   docker.io/ansible/centos7-ansible       Ansible on Centos7                              82                   [OK]
docker.io   docker.io/jdeathe/centos-ssh            CentOS-6 6.8 x86_64 / CentOS-7 7.2.1511 x8...   27                   [OK]
docker.io   docker.io/nimmis/java-centos            This is docker images of CentOS 7 with dif...   13                   [OK]
docker.io   docker.io/million12/centos-supervisor   Base CentOS-7 with supervisord launcher, h...   12                   [OK]
docker.io   docker.io/gluster/gluster-centos        Official GlusterFS Image [ CentOS7 +  Glus...   11                   [OK]
docker.io   docker.io/torusware/speedus-centos      Always updated official CentOS docker imag...   8                    [OK]
docker.io   docker.io/nickistre/centos-lamp         LAMP on centos setup                            4                    [OK]
docker.io   docker.io/nathonfowlie/centos-jre       Latest CentOS image with the JRE pre-insta...   3                    [OK]
docker.io   docker.io/consol/sakuli-centos-xfce     Sakuli end-2-end testing and monitoring co...   2                    [OK]
docker.io   docker.io/blacklabelops/centos          CentOS Base Image! Built and Updates Daily!     1                    [OK]
docker.io   docker.io/darksheer/centos              Base Centos Image -- Updated hourly             1                    [OK]
docker.io   docker.io/harisekhon/centos-java        Java on CentOS (OpenJDK, tags jre/jdk7-8)       1                    [OK]
docker.io   docker.io/timhughes/centos              Centos with systemd installed and running       1                    [OK]
docker.io   docker.io/aguamala/centos               CentOS base image                               0                    [OK]
docker.io   docker.io/dmglab/centos                 CentOS with some extras - This is for the ...   0                    [OK]
docker.io   docker.io/grayzone/centos               auto build for centos.                          0                    [OK]
docker.io   docker.io/grossws/centos                CentOS 6 and 7 base images with gosu and l...   0                    [OK]
docker.io   docker.io/harisekhon/centos-scala       Scala + CentOS (OpenJDK tags 2.10-jre7 - 2...   0                    [OK]
docker.io   docker.io/januswel/centos               yum update-ed CentOS image                      0                    [OK]
docker.io   docker.io/jsmigel/centos-epel           Docker base image of CentOS w/ EPEL installed   0                    [OK]
docker.io   docker.io/kz8s/centos                   Official CentOS plus epel-release               0                    [OK]
docker.io   docker.io/repositoryjp/centos           Docker Image for CentOS.                        0                    [OK]
docker.io   docker.io/smartentry/centos             CentOS with smartentry                          0                    [OK]
docker.io   docker.io/ustclug/centos                 USTC centos                                    0                    [OK]

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构建docker镜像：

docker pull centos:laster
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慢慢的等待镜像文件的下载。下载完可以通过如下命令查看镜像

# docker images  //查看镜像信息
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/centos    7.2.1511            686672a1d0cc        5 weeks ago         194.6 MB
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通过docker run来启动镜像，同时会创建一个容器，看下docker run的启动命令：

[root@localhost /]# docker run --help

Usage:  docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

Run a command in a new container

  -a, --attach=[]                 Attach to STDIN, STDOUT or STDERR
  --add-host=[]                   Add a custom host-to-IP mapping (host:ip)
  --blkio-weight                  Block IO (relative weight), between 10 and 1000
  --blkio-weight-device=[]        Block IO weight (relative device weight)
  --cpu-shares                    CPU shares (relative weight)
  --cap-add=[]                    Add Linux capabilities
  --cap-drop=[]                   Drop Linux capabilities
  --cgroup-parent                 Optional parent cgroup for the container
  --cidfile                       Write the container ID to the file
  --cpu-period                    Limit CPU CFS (Completely Fair Scheduler) period
  --cpu-quota                     Limit CPU CFS (Completely Fair Scheduler) quota
  --cpuset-cpus                   CPUs in which to allow execution (0-3, 0,1)
  --cpuset-mems                   MEMs in which to allow execution (0-3, 0,1)
  -d, --detach                    Run container in background and print container ID
  --detach-keys                   Override the key sequence for detaching a container
  --device=[]                     Add a host device to the container
  --device-read-bps=[]            Limit read rate (bytes per second) from a device
  --device-read-iops=[]           Limit read rate (IO per second) from a device
  --device-write-bps=[]           Limit write rate (bytes per second) to a device
  --device-write-iops=[]          Limit write rate (IO per second) to a device
  --disable-content-trust=true    Skip image verification
  --dns=[]                        Set custom DNS servers
  --dns-opt=[]                    Set DNS options
  --dns-search=[]                 Set custom DNS search domains
  -e, --env=[]                    Set environment variables
  --entrypoint                    Overwrite the default ENTRYPOINT of the image
  --env-file=[]                   Read in a file of environment variables
  --expose=[]                     Expose a port or a range of ports
  --group-add=[]                  Add additional groups to join
  -h, --hostname                  Container host name
  --help                          Print usage
  -i, --interactive               Keep STDIN open even if not attached
  --ip                            Container IPv4 address (e.g. 172.30.100.104)
  --ip6                           Container IPv6 address (e.g. 2001:db8::33)
  --ipc                           IPC namespace to use
  --isolation                     Container isolation level
  --kernel-memory                 Kernel memory limit
  -l, --label=[]                  Set meta data on a container
  --label-file=[]                 Read in a line delimited file of labels
  --link=[]                       Add link to another container
  --log-driver                    Logging driver for container
  --log-opt=[]                    Log driver options
  -m, --memory                    Memory limit
  --mac-address                   Container MAC address (e.g. 92:d0:c6:0a:29:33)
  --memory-reservation            Memory soft limit
  --memory-swap                   Swap limit equal to memory plus swap: '-1' to enable unlimited swap
  --memory-swappiness=-1          Tune container memory swappiness (0 to 100)
  --name                          Assign a name to the container
  --net=default                   Connect a container to a network
  --net-alias=[]                  Add network-scoped alias for the container
  --oom-kill-disable              Disable OOM Killer
  --oom-score-adj                 Tune host's OOM preferences (-1000 to 1000)
  -P, --publish-all               Publish all exposed ports to random ports
  -p, --publish=[]                Publish a container's port(s) to the host
  --pid                           PID namespace to use
  --privileged                    Give extended privileges to this container
  --read-only                     Mount the container's root filesystem as read only
  --restart=no                    Restart policy to apply when a container exits
  --rm                            Automatically remove the container when it exits
  --security-opt=[]               Security Options
  --shm-size                      Size of /dev/shm, default value is 64MB
  --sig-proxy=true                Proxy received signals to the process
  --stop-signal=SIGTERM           Signal to stop a container, SIGTERM by default
  --sysctl=map[]                  Sysctl options
  -t, --tty                       Allocate a pseudo-TTY
  --tmpfs=[]                      Mount a tmpfs directory
  -u, --user                      Username or UID (format: <name|uid>[:<group|gid>])
  --ulimit=[]                     Ulimit options
  --uts                           UTS namespace to use
  -v, --volume=[]                 Bind mount a volume
  --volume-driver                 Optional volume driver for the container
  --volumes-from=[]               Mount volumes from the specified container(s)
  -w, --workdir                   Working directory inside the container
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启动并创建一个交互式的docker容器：

[root@localhost /]# docker run -ti -d 686672a1d0cc
//-d为后台启动
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通过docker ps 来查看当前运行的容器，看下docker ps的相关指令：

[root@localhost /]# docker ps --help

Usage:  docker ps [OPTIONS]

List containers

  -a, --all          Show all containers (default shows just running)
  -f, --filter=[]    Filter output based on conditions provided
  --format           Pretty-print containers using a Go template
  --help             Print usage
  -l, --latest       Show the latest created container (includes all states)
  -n=-1              Show n last created containers (includes all states)
  --no-trunc         Don't truncate output
  -q, --quiet        Only display numeric IDs
  -s, --size         Display total file sizes

[root@localhost /]# docker ps//查看当前正在运行的容器
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
7d95b3df8674        686672a1d0cc        "/bin/bash"         5 hours ago         Up About an hour                        admiring_kowalevski

[root@localhost /]# docker ps -a//查看所有的容器信息
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                           PORTS               NAMES
7d95b3df8674        686672a1d0cc        "/bin/bash"         5 hours ago         Up About an hour                                     admiring_kowalevski
1b4ac575eda0        686672a1d0cc        "/bin/bash"         23 hours ago        Exited (137) About an hour ago                       elated_turing
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通过docker start,docker stop来启动和停止容器：

[root@localhost /]# docker start --help

Usage:  docker start [OPTIONS] CONTAINER [CONTAINER...]

Start one or more stopped containers

  -a, --attach         Attach STDOUT/STDERR and forward signals
  --detach-keys        Override the key sequence for detaching a container
  --help               Print usage
  -i, --interactive    Attach container's STDIN
[root@localhost /]# docker stop --help

Usage:  docker stop [OPTIONS] CONTAINER [CONTAINER...]

Stop a running container.
Sending SIGTERM and then SIGKILL after a grace period

  --help             Print usage
  -t, --time=10      Seconds to wait for stop before killing it
[root@localhost /]# docker restart --help

Usage:  docker restart [OPTIONS] CONTAINER [CONTAINER...]

Restart a container

  --help             Print usage
  -t, --time=10      Seconds to wait for stop before killing the container
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使用docker exec 可以进入到已经启动的容器中，低版本的docker可能不行。

[root@localhost Desktop]# docker exec -ti 7d95b3df8674 /bin/bash
[root@7d95b3df8674 /]# 
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   容器的工作是建立在镜像的基础之上的，如果需要删除镜像的话，需要先删除使用该镜像的容器，然后才能删除镜像，否则删除镜像的时候，会有如下的类似的错误信息提示：Failed to remove image (e7b): Error response from daemon: conflict: unable to delete e7b2de517efa (must be forced) - image is being used by stopped container 4fbc3cd00987，可以通过docker rm删除容器，docker rmi 删除镜像。

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[root@localhost /]# docker rm --help

Usage:  docker rm [OPTIONS] CONTAINER [CONTAINER...]

Remove one or more containers

  -f, --force        Force the removal of a running container (uses SIGKILL)
  --help             Print usage
  -l, --link         Remove the specified link
  -v, --volumes      Remove the volumes associated with the container
[root@localhost /]# docker rmi --help

Usage:  docker rmi [OPTIONS] IMAGE [IMAGE...]

Remove one or more images

  -f, --force        Force removal of the image
  --help             Print usage
  --no-prune         Do not delete untagged parents

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   删除停止的容器
   docker rm $(docker ps --all -q -f status=exited)
   删除没有使用的镜像
   docker rmi -f $(docker images | grep "<none>" | awk "{print \$3}")
   批量删除容器
   docker ps -a | awk '{print $1}' | xargs docker rm
   批量删除镜像
   docker images | awk '{print $3}' | xargs docker rmi
   持久化容器与镜像
   1.通过容器生成新的镜像
   运行中的镜像称为容器。你可以修改容器（比如删除一个文件），但这些修改不会影响到镜像。不过，你使用docker commit <container-id> <image-name>命令可以把一个正在运行的容器变成一个新的镜像。
   docker commit <container> [repo:tag] 将一个container固化为一个新的image，后面的repo:tag可选。
   2.持久化容器
   docker export用于持久化容器。

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[root@localhost /]# docker export --help

Usage:  docker export [OPTIONS] CONTAINER

Export a container's filesystem as a tar archive

  --help             Print usage
  -o, --output       Write to a file, instead of STDOUT

 [root@localhost /]# docker export <CONTAINER ID>  container.tar 
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   3.持久化镜像
   docker save用于持久化镜像：

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[root@localhost /]# docker save --help

Usage:  docker save [OPTIONS] IMAGE [IMAGE...]

Save an image(s) to a tar archive (streamed to STDOUT by default)

  --help             Print usage
  -o, --output       Write to a file, instead of STDOUT
[root@localhost /]# docker save <CONTAINER ID>  image.tar 
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   4.导入持久化镜像，容器：
   使用docker import，docker load导入镜像容器：

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[root@localhost /]#  docker import --help

Usage:  docker import [OPTIONS] file|URL|- [REPOSITORY[:TAG]]

Import the contents from a tarball to create a filesystem image

  -c, --change=[]    Apply Dockerfile instruction to the created image
  --help             Print usage
  -m, --message      Set commit message for imported image
[root@localhost /]#  docker load --help

Usage:  docker load [OPTIONS]

Load an image from a tar archive or STDIN

  --help             Print usage
  -i, --input        Read from a tar archive file, instead of STDIN
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   5.对镜像打tag

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[root@localhost /]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/centos    7.2.1511            686672a1d0cc        5 weeks ago         194.6 MB
[root@localhost /]# docker tag 686672a1d0cc centos:base
[root@localhost /]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
centos              base                686672a1d0cc        5 weeks ago         194.6 MB
docker.io/centos    7.2.1511            686672a1d0cc        5 weeks ago         194.6 MB

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   6.export-import与save-load的区别
   导出后再导入(export-import)的镜像会丢失所有的历史，而保存后再加载（save-load）的镜像没有丢失历史和层(layer)。这意味着使用导出后再导入的方式，你将无法回滚到之前的层(layer)，同时，使用保存后再加载的方式持久化整个镜像，就可以做到层回滚。（可以执行docker tag <LAYER ID> <IMAGE NAME>来回滚之前的层）。
   docker logs $CONTAINER_ID #查看docker实例运行日志，确保正常运行
   docker inspect $CONTAINER_ID #docker inspect <image|container> 查看image或container的底层信息
   docker build <path> 寻找path路径下名为的Dockerfile的配置文件，使用此配置生成新的image
   docker build -t repo[:tag] 同上，可以指定repo和可选的tag
   docker build - < <dockerfile> 使用指定的dockerfile配置文件，docker以stdin方式获取内容，使用此配置生成新的image
   docker port <container> <container port> 查看本地哪个端口映射到container的指定端口，其实用docker ps 也可以看到。
   7.docker文件存放目录
   Docker实际上把所有东西都放到/var/lib/docker路径下了。 
   至此一个简单干净的docker环境搭建完毕。

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参考：http://www.server110.com/docker/201411/11105.html
http://blog.csdn.net/fgf00/article/details/51893771
http://www.cnblogs.com/wangjiyong/p/5416960.html
https://github.com/docker/docker/releases
https://docs.docker.com/engine/installation/linux/centos/

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