最近在嘗試閱讀docker源碼，一直想弄明白docker關于namespace等的代碼的在哪，以及怎么觸發。然而在閱讀時發現根本找不到代碼。。。想著還是先源碼安裝下docker，然后邊運行邊打印些調試信息看看再說
安裝之前
docker源碼需在docker容器編譯環境中編譯，所以先安裝docker，安裝環境依舊是ubuntu14.04
|
1
2
3
4
5
|
echo "deb https://apt.dockerproject.org/repo ubuntu-trusty main" | sudo tee /etc/apt/sources.list.d/docker.listsudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118e89f3a912897c070adbf76221572c52609dsudo apt-get updatesudo apt-get upgradesudo apt-get install docker-engine |
起初是使用apt-get install docker.io安裝，但在編譯源碼的時候會遇到arg錯誤。
安裝
docker的安裝命令很簡單，雖然錯誤很多= =
|
1
2
3
4
5
|
apt-get install make git golanggit clone https://git@github.com/docker/dockercd dockermake buildmake binary |
遇到的問題與解決方案
unknown instruction: arg
原因：
docker hub's automated build is still running docker 1.8 and doesn't support arg yet. there is a github issue tracking their upgrade to 1.9.
解決方案：采用安裝最新的docker-engine方式
docker daemon啟動失敗
fata[0000] error starting daemon: error initializing graphdriver: "/var/lib/docker" contains several valid graphdrivers: aufs, devicemapper; please cleanup or explicitly choose storage driver (-s <driver>)
解決方案：移除devicemap文件夾，如 mv /var/lib/docker/devicemapper/ .
make build出錯一
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
step 6 : run apt-get update && apt-get install -y apparmor apt-utils aufs-tools automake bash-completion binutils-mingw-w64 bsdmainutils btrfs-tools build-essential clang createrepo curl dpkg-sig gcc-mingw-w64 git iptables jq libapparmor-dev libcap-dev libltdl-dev libsqlite3-dev libsystemd-journal-dev libtool mercurial net-tools pkg-config python-dev python-mock python-pip python-websocket ubuntu-zfs xfsprogs libzfs-dev tar zip --no-install-recommends && pip install awscli==1.10.15---> running in 32ad02db3575get:1 http://ppa.launchpad.net trusty inrelease [15.5 kb]ign http://httpredir.debian.org jessie inreleaseget:2 http://httpredir.debian.org jessie-updates inrelease [142 kb]get:3 http://security.debian.org jessie/updates inrelease [63.1 kb]get:4 http://httpredir.debian.org jessie release.gpg [2373 b]get:5 http://ppa.launchpad.net trusty/main amd64 packages [5150 b]get:6 http://httpredir.debian.org jessie-updates/main amd64 packages [17.6 kb]get:7 http://httpredir.debian.org jessie release [148 kb]get:8 http://httpredir.debian.org jessie/main amd64 packages [9035 kb]get:9 http://security.debian.org jessie/updates/main amd64 packages [232 kb]fetched 9662 kb in 19s (504 kb/s)w: failed to fetch http://httpredir.debian.org/debian/dists/jessie/main/binary-amd64/packages hash sum mismatchw: failed to fetch http://security.debian.org/dists/jessie/updates/main/binary-amd64/packages hash sum mismatche: some index files failed to download. thew: failed to fetch http://httpredir.debian.org/debian/dists/jessie/main/binary-amd64/packages hash sum mismatch |
看樣子是源的問題哎╮(╯▽╰)╭
而且是run指令，應該是dockerfile運行容器之后的源錯誤，so，看下docker/dockerfile
|
1
2
|
# arg apt_mirror=httpredir.debian.orgrun sed -i s/httpredir.debian.org/$apt_mirror/g /etc/apt/sources.list |
在這里修改了源~從網上重新找個ftp.cn.debian.org，然而，。。。還是錯。。。
好吧，那把這兩句直接全部注釋掉，用163的debian源內容echo到容器里，執行
run echo "deb jessie main non-free contrib\ndeb jessie-updates main non-free contrib\ndeb jessie-backports main non-free contrib\ndeb-src jessie main non-free contrib\ndeb-src jessie-updates main non-free contrib\ndeb-src jessie-backports main non-free contrib\ndeb jessie/updates main non-free contrib\ndeb-src jessie/updates main non-free contrib" | tee /etc/apt/sources.list
再執行make build，出現依賴問題，那就用aptitude吧
|
1
2
|
run apt-get update && apt-get install -y aptituderun aptitude install -y \ |
（同時去掉–no-install-recommends\那一行）
make build出錯二
|
1
2
3
4
5
6
7
8
9
10
11
12
|
step 15 : run set -x && export seccomp_path="$(mktemp -d)" && curl -fssl "https://github.com/seccomp/libseccomp/releases/download/v${seccomp_version}/libseccomp-${seccomp_version}.tar.gz" | tar -xzc "$seccomp_path" --strip-components=1 && ( cd "$seccomp_path" && ./configure --prefix=/usr/local && make && make install && ldconfig ) && rm -rf "$seccomp_path" ---> running in 4ad66d28289d+ mktemp -d+ export seccomp_path=/tmp/tmp.twpyfcirjc+ curl -fssl https://github.com/seccomp/libseccomp/releases/download/v2.3.1/libseccomp-2.3.1.tar.gz+ tar -xzc /tmp/tmp.twpyfcirjc --strip-components=1curl: (56) ssl read: error:00000000:lib(0):func(0):reason(0), errno 104gzip: stdin: unexpected end of filetar: unexpected eof in archivetar: unexpected eof in archivetar: error is not recoverable: exiting now |
網絡問題，網上有說先下載下來再用add添加進去，結果發現校園網貌似訪問這挺快的，連上vpn再執行就行了。。
make binary 出錯
error：/usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: fork/exec /usr/bin/gcc: cannot allocate memory
內存不足~增大虛擬機內存唄
安裝結果
make build
make binary
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：http://blog.csdn.net/lwyeluo/article/details/51765309
