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docker20160519.mm
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https://www.docker.com/
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List images
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<p>
列出 images
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#列出 docker images
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docker  images
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<head>
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<p>
Run a command in a new container
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Usage: docker  run  [OPTIONS]   IMAGE   [COMMAND]   [ARG...]
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<p>
如果沒有加上 --rm
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離開 container 之後, 用 docker  ps  -a 會發現其實還在主機上面
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</node>
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<head>
</head>
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<p>
#!/bin/bash
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<p>
for (( i=8000 ; i < 8015 ; i=i+1 ))
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<p>
  do
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<p>
    sudo docker run -d -p $i:22 -t sakana/sshd
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<p>
  done
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</html></richcontent>
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</node>
</node>
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<head>
</head>
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<p>
flag is new and tells Docker to map any required network ports inside our container to our host.
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<p>
自動指定Host port 來連接
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<head>
</head>
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<p>
-p, --publish=[ ]                Publish a container's port(s) to the host
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<p>
手動指定host port 來連接
</p>
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</html>
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<node CREATED="1463667534111" ID="ID_782542259" MODIFIED="1463667537668" TEXT="attach">
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<head>
</head>
<body>
<p>
attach    Attach to a running container
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<p>
針對已經執行的container 再次進入到容器內
</p>
</body>
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<node CREATED="1463667667584" ID="ID_867311495" MODIFIED="1463667683084" TEXT="#docker attach CONTAINERID"/>
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<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
List containers
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<p>
列出 containers
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</body>
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</head>
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<p>
列出目前執行 container
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<p>
#docker  ps
</p>
<p>
</p>
<p>
列出所有的 container
</p>
<p>
#docker  ps  -a
</p>
<p>
</p>
<p>
列出所有的 container, 但是只顯示 ID
</p>
<p>
#docker  ps  -a  -q
</p>
</body>
</html>
</richcontent>
</node>
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<node CREATED="1463668163196" ID="ID_497200439" MODIFIED="1463668165291" TEXT="start">
<node CREATED="1463668166356" ID="ID_1568891632" MODIFIED="1463668189233" TEXT="啟動停止的container"/>
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<node CREATED="1463668913403" ID="ID_1717368841" MODIFIED="1463668915001" TEXT="stop">
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<head>
</head>
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<p>
組合技
</p>
<p>
停止所有的container
</p>
<p>
docker  stop  $( docker  ps  -aq  )
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</body>
</html>
</richcontent>
</node>
</node>
<node CREATED="1463668352089" ID="ID_1411585655" MODIFIED="1463668355510" TEXT="inspect">
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<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
Return low-level information on a container or image
</p>
<p>
Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]
</p>
</body>
</html>
</richcontent>
</node>
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<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
查詢掛載的 volume 位置
</p>
<p>
# docker  inspect  -f  {{.Mounts}}   CONTAINERID
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</body>
</html>
</richcontent>
</node>
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<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
組合技
</p>
<p>
移除所有的container, 但是要先停止
</p>
<p>
docker  rm  $( docker  ps  -aq  )
</p>
</body>
</html>
</richcontent>
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</node>
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<richcontent TYPE="NODE"><html>
<head>
</head>
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<p>
Remove one or more images
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<p>
移除 docker images 但是要先移除所有相關 container
</p>
</body>
</html>
</richcontent>
</node>
<node CREATED="1463669290187" ID="ID_850576706" MODIFIED="1463669298928" TEXT="#docker rmi IMAGEID"/>
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</node>
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<node CREATED="1441234118766" ID="ID_1529395880" MODIFIED="1441234129440" TEXT="https://www.gitbook.com/book/philipzheng/docker_practice/details"/>
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</node>
</node>
<node CREATED="1441655144970" ID="ID_224738910" MODIFIED="1441655146952" POSITION="left" TEXT="image">
<node CREATED="1441655172830" ID="ID_311584012" MODIFIED="1461593789081" TEXT="查詢映像檔">
<node CREATED="1441655175726" ID="ID_1114037119" MODIFIED="1441655202688">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
方式 1 上網搜尋
</p>
<p>
https://hub.docker.com/
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1441655204681" ID="ID_1198372826" MODIFIED="1441655222553">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
方式 2 使用指令
</p>
<p>
使用 docker  search 來搜尋
</p>
</body>
</html></richcontent>
</node>
</node>
<node CREATED="1441655225334" ID="ID_373020461" MODIFIED="1461593795370" TEXT="取得映像檔到本機">
<node CREATED="1441655235756" ID="ID_1245205992" MODIFIED="1441655260230">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
使用  docker  pull 來下載 image
</p>
<p>
> docker  pull  opensuse:13.2
</p>
</body>
</html></richcontent>
</node>
</node>
<node CREATED="1441655278833" FOLDED="true" ID="ID_1245184983" MODIFIED="1463666535361" TEXT="建立 docker 映像檔">
<node CREATED="1441655281016" FOLDED="true" ID="ID_930280541" MODIFIED="1441655498358">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
方式 1 修改現有的映像檔
</p>
</body>
</html></richcontent>
<node CREATED="1441655331082" ID="ID_778514977" MODIFIED="1441655493516">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
 下載 training/sinatra Repository映像檔 ( 可以注意到下載了所有 TAG 的映像檔, 從 training/sinatra )
</p>
<p>
</p>
<p>
 > docker   pull   training/sinatra
</p>
<p>
</p>
<p>
 觀察 images
</p>
<p>
> docker images
</p>
<p>
</p>
<p>
執行之前先列出目前執行的 Container
</p>
<p>
docker  ps 可以列出 container
</p>
<p>
-a 是列出所有的 container
</p>
<p>
如果沒有加上 -a 則是列出目前有執行指令的 container
</p>
<p>
</p>
<p>
 > docker  ps -a
</p>
<p>
</p>
<p>
執行 docker image 到  container ( 這次不加上 --rm, 也就是說 exit 之後不刪除 )
</p>
<p>
</p>
<p>
 > docker    run    -i    -t    training/sinatra  /bin/bash
</p>
<p>
</p>
<p>
輸入 exit 離開 container
</p>
<p>
root@6764848c94c4:/# exit
</p>
<p>
</p>
<p>
再次觀察 container
</p>
<p>
> docker  ps -a
</p>
<p>
</p>
<p>
跟上面比對就會發現, 剛剛登入 shell 的時候 root@後面那串就是 container ID
</p>
<p>
</p>
<p>
再次執行一個新的 container
</p>
<p>
</p>
<p>
 > docker  run  -i  -t  training/sinatra  /bin/bash
</p>
<p>
root@ddc3cdc142f3:/#
</p>
<p>
</p>
<p>
 這邊就會發現 container ID 是不一樣, 因為是另外一個
</p>
<p>
</p>
<p>
 我們基於這個來修改成我們的映像檔
</p>
<p>
安裝 json 套件來作出差異
</p>
<p>
root@ddc3cdc142f3:/# gem  install json
</p>
<p>
</p>
<p>
離開 container
</p>
<p>
</p>
<p>
這樣這個映像檔就跟之前不一樣了
</p>
<p>
接下來透過 docker  commit 來建立新的
</p>
<p>
</p>
<p>
</p>
<p>
> docker   commit   -m "Add json"  -a "sakana"   ddc3cdc142f3    testrepo/testimage:vTEST
</p>
<p>
220501802d62b8aca6ed82aad9ea99c2dc9a12d195638b6bdf47f20aa8e92860
</p>
<p>
</p>
<p>
 commit   提交一個新的 image
</p>
<p>
-m 訊息Commit message
</p>
<p>
-a  作者 Author (e.g., "John Hannibal Smith <[email protected]>")
</p>
<p>
ddc3cdc142f3 是container ID
</p>
<p>
testrepo/testimage:vTEST 是 Repository名稱/映像檔名稱:TAG
</p>
<p>
</p>
<p>
 觀察 images
</p>
<p>
> docker   images
</p>
<p>
</p>
<p>
這個時候就會知道, 如果我們日後不上傳到 Docker Hub, 其實 Repository名稱是可以自己取的, 沒有影響, 但是如果要上傳, 就是要註冊 Docker Hub的帳號, 符合上面的規則才可以.
</p>
</body>
</html></richcontent>
</node>
</node>
<node CREATED="1441655510238" ID="ID_468534482" MODIFIED="1441655511262" TEXT="方式 2 使用 Dockerfile 建立映像檔">
<node CREATED="1441655512156" ID="ID_550593995" MODIFIED="1441655563475">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
我們可以透過 docker  build 配合 Dockerfile 來建立映像檔
</p>
<p>
</p>
<p>
</p>
<p>
首先觀察目前的路徑
</p>
<p>
> pwd
</p>
<p>
/home/max
</p>
<p>
</p>
<p>
 建立目錄
</p>
<p>
> mkdir  sakana
</p>
<p>
</p>
<p>
 進入該目錄
</p>
<p>
> cd   sakana/
</p>
<p>
</p>
<p>
 建立 Dockerfile
</p>
<p>
> vi   Dockerfile
</p>
<p>
# 用於註解
</p>
<p>
# 後續的流程, 前面都要大寫
</p>
<p>
# FROM 基於那個 image
</p>
<p>
FROM ubuntu:14.04
</p>
<p>
# MAINTAINER 維護作者
</p>
<p>
MAINTAINER Max Huang < [email protected] >
</p>
<p>
# RUN 要執行的指令
</p>
<p>
RUN apt-get update && apt-get install -y ruby ruby-dev
</p>
<p>
RUN gem install sinatra
</p>
<p>
</p>
<p>
 > docker    build    -t    sakanatest/testimage    /home/max/sakana
</p>
<p>
</p>
<p>
> docker  images
</p>
</body>
</html></richcontent>
</node>
</node>
</node>
<node CREATED="1441655595711" FOLDED="true" ID="ID_526952221" MODIFIED="1463666297745" TEXT="設定映像檔 TAG">
<node CREATED="1441655620169" ID="ID_725832502" MODIFIED="1441655626124">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
可以透過  docker tag 來設定 映像檔的 TAG
</p>
<p>
</p>
<p>
 > docker  images
</p>
<p>
REPOSITORY             TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
</p>
<p>
sakanatest/testimage   latest              dd38d73f4e20        2 minutes ago       318.7 MB
</p>
<p>
testrepo/testimage     vTEST               220501802d62        37 minutes ago      452.1 MB
</p>
<p>
ubuntu                 14.04               91e54dfb1179        13 days ago         188.3 MB
</p>
<p>
ubuntu                 12.04               57bca5139a13        13 days ago         134.8 MB
</p>
<p>
opensuse               13.2                d6b241b32a2d        5 weeks ago         93.99 MB
</p>
<p>
opensuse               latest              d6b241b32a2d        5 weeks ago         93.99 MB
</p>
<p>
training/sinatra       latest              f0f4ab557f95        15 months ago       447 MB
</p>
<p>
</p>
<p>
 > docker    tag    dd38d73f4e20    sakanatest/testimage:tagTest
</p>
</body>
</html></richcontent>
</node>
</node>
<node CREATED="1441655638468" FOLDED="true" ID="ID_556477924" MODIFIED="1441655716380" TEXT="移除映像檔">
<node CREATED="1441655640211" ID="ID_157237005" MODIFIED="1441655715008">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
先觀察 container
</p>
<p>
> docker    ps     -a
</p>
<p>
CONTAINER ID        IMAGE                      COMMAND             CREATED             STATUS                         PORTS               NAMES
</p>
<p>
acfed6e70946        testrepo/testimage:vTEST   "/bin/bash"         About an hour ago   Exited (0) About an hour ago                       furious_pare       
</p>
<p>
ddc3cdc142f3        training/sinatra           "/bin/bash"         About an hour ago   Exited (0) About an hour ago                       serene_tesla       
</p>
<p>
6764848c94c4        training/sinatra           "/bin/bash"         About an hour ago   Exited (0) About an hour ago                       elegant_lalande   
</p>
<p>
</p>
<p>
 觀察映像檔
</p>
<p>
這邊可以觀察到 sakanatest/testimage 沒有container使用中
</p>
<p>
testrepo/testimage 以及 trainging/sinatra 有 container 使用中
</p>
<p>
</p>
<p>
 > docker    images
</p>
<p>
REPOSITORY             TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
</p>
<p>
sakanatest/testimage   latest              dd38d73f4e20        About an hour ago   318.7 MB
</p>
<p>
sakanatest/testimage   tagTest             dd38d73f4e20        About an hour ago   318.7 MB
</p>
<p>
testrepo/testimage     vTEST               220501802d62        About an hour ago   452.1 MB
</p>
<p>
ubuntu                 14.04               91e54dfb1179        13 days ago         188.3 MB
</p>
<p>
ubuntu                 12.04               57bca5139a13        13 days ago         134.8 MB
</p>
<p>
opensuse               13.2                d6b241b32a2d        5 weeks ago         93.99 MB
</p>
<p>
opensuse               latest              d6b241b32a2d        5 weeks ago         93.99 MB
</p>
<p>
training/sinatra       latest              f0f4ab557f95        15 months ago       447 MB
</p>
<p>
</p>
<p>
</p>
<p>
我們可以使用 docker  rmi 來移除 沒有 container 使用中的 image
</p>
<p>
</p>
<p>
首先針對沒有 container 運作的  sakanatest/testimage 來刪除
</p>
<p>
> docker   rmi   sakanatest/testimage:tagTest
</p>
<p>
Untagged: sakanatest/testimage:tagTest
</p>
<p>
Deleted: dd38d73f4e2021c81c52530e99eb1cb98f87b9031d50c6342e7d47b8302f78a7
</p>
<p>
Deleted: b987f587ddb48e0006250cc77835530f605c32647d5cbe0432ea8a5fd3769017
</p>
<p>
Deleted: adbe1f76147105dc554a86f026dab8fa8b2019892bfb5d10cfe9e3df5bafa9b9
</p>
<p>
</p>
<p>
 刪除不會有問題, 使用  docker  rmi 刪除所有 sakanatest/testimage 上面 image
</p>
</body>
</html></richcontent>
</node>
</node>
<node CREATED="1461589097351" ID="ID_741086151" MODIFIED="1461589144575">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
映像檔存放路徑
</p>
</body>
</html></richcontent>
<node CREATED="1461589147014" ID="ID_657962546" MODIFIED="1461589158491" TEXT="/var/lib/docker"/>
</node>
</node>
<node CREATED="1441655737716" FOLDED="true" ID="ID_1825571912" MODIFIED="1463666302720" POSITION="left" TEXT="container">
<node CREATED="1441655742667" ID="ID_484653212" MODIFIED="1461593816778" TEXT="移除container">
<node CREATED="1441655752173" ID="ID_1962935230" MODIFIED="1441655781982">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
觀察一次
</p>
<p>
> docker  ps  -a
</p>
<p>
CONTAINER ID        IMAGE                      COMMAND             CREATED             STATUS                         PORTS               NAMES
</p>
<p>
acfed6e70946        testrepo/testimage:vTEST   "/bin/bash"         About an hour ago   Exited (0) About an hour ago                       furious_pare       
</p>
<p>
ddc3cdc142f3        training/sinatra           "/bin/bash"         About an hour ago   Exited (0) About an hour ago                       serene_tesla       
</p>
<p>
6764848c94c4        training/sinatra           "/bin/bash"         2 hours ago         Exited (0) 2 hours ago                             elegant_lalande
</p>
<p>
</p>
<p>
 移除 container 可以使用  docker  rm 指令來完成
</p>
<p>
</p>
<p>
 > docker    rm    acfed6e70946
</p>
<p>
acfed6e70946
</p>
<p>
</p>
<p>
 確認已經刪除
</p>
<p>
> docker  ps  -a
</p>
<p>
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                   PORTS               NAMES
</p>
<p>
ddc3cdc142f3        training/sinatra    "/bin/bash"         2 hours ago         Exited (0) 2 hours ago                       serene_tesla       
</p>
<p>
6764848c94c4        training/sinatra    "/bin/bash"         2 hours ago         Exited (0) 2 hours ago                       elegant_lalande 
</p>
</body>
</html></richcontent>
</node>
<node CREATED="1441655805487" ID="ID_1200384903" MODIFIED="1441655808525" TEXT="一次刪除所有的 container">
<node CREATED="1441655809432" ID="ID_750226097" MODIFIED="1441655823942">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
docker  ps 指令加上 -q 只會列出 container ID
</p>
<p>
> docker  ps  -a  -q
</p>
<p>
ddc3cdc142f3
</p>
<p>
6764848c94c4
</p>
<p>
</p>
<p>
 但是做這件事的時候要三思而後行
</p>
<p>
> docker  rm  $( docker  ps  -a  -q )
</p>
</body>
</html></richcontent>
</node>
</node>
</node>
</node>
<node CREATED="1461589653443" ID="ID_1066724202" MODIFIED="1461589663968" POSITION="left" TEXT="options 選項">
<node CREATED="1461589667444" ID="ID_1535243733" MODIFIED="1461589670131" TEXT="-P">
<node CREATED="1461589686115" ID="ID_1427329700" MODIFIED="1461589687688" TEXT="flag is new and tells Docker to map any required network ports inside our container to our host."/>
</node>
<node CREATED="1461589690107" ID="ID_262304585" MODIFIED="1461589693004" TEXT="-d">
<node CREATED="1461588355417" ID="ID_1037030151" MODIFIED="1461588380216" TEXT="以背景的方式執行container">
<node CREATED="1461588399688" ID="ID_783390523" MODIFIED="1461588436724" TEXT="使用 -d 選項方式來執行">
<node CREATED="1461589034952" ID="ID_1404551021" MODIFIED="1461589084025" TEXT="sudo docker run -d -p 對外port:設定port -t dockerimage"/>
<node CREATED="1461588575644" ID="ID_90427046" MODIFIED="1461588588400">
<richcontent TYPE="NODE"><html>
<head>