Jennifer的Docker筆記本 陸陸續續的撰寫整理，終於完成了，Cheers!
Docker – (15) 修改已建立的container restart policy
之前建立的container忘了下restart=always，導致每次重開機都必須重啟container = =" ，好在找到指令可以即時補救，趕緊寫下來記錄一下~XD
首先可以檢查container設定
$ docker inspect [Container ID] or $ docker inspect [Container Name]
可以看到container並無設定restart policy
然後來下神奇指令docker update
$ docker update --restart=always [Container ID] or $ docker update --restart=always [Container Name]
成功！restart policy已被修改！
Python (37) – pip install 安裝錯誤
(Ubuntu) Python.h: No such file or directory
$ apt-get install python-dev
(Ubuntu) 無法安裝six
$ sudo pip install six --upgrade --ignore-installed sixLinux – (7) Use Ubuntu to be NFS client
OS: Ubuntu 14.04
To install nfs-common first
$ apt-get install nfs-common
After that, we can mount nfs server
$ mount -t nfs 192.0.0.1:/nfs_folder /home/jennifer/fs
$ mount -t nfs [nfs server ip]:/[nfs server folder] [folder on host]
Also, we can create docker data volume (data volume name = my_nfs)
$ docker volume create –driver local \
–opt type=nfs \
–opt o=nfsvers=3,addr=192.0.0.1,rw \
–opt device=:/nfs_folder \
my_nfs
Use data volume while creating docker container
$ docker run -d –net=host –restart=always -v my_nfs:/tmp:ro nginx:1.13.3-alpine
Linux – (6) apt-get update 失敗：無法取得公鑰
apt-get update時發生了「無法取得公鑰」的錯誤，解決方法如下：
curl -L https://debian.datastax.com/debian/repo_key | sudo apt-key add –
之前有遇過無法取得docker網址的公鑰，則是用以下網址：
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add –
Python (37) – pip 一堆坑
☁ 連線被拒絕
Looking in indexes: http://192.168.0.1:8081/repository/pypi-group/simple
Retrying (Retry(total=1, connect=None, read=None, redirect=None,
status=None)) after connection broken by 'NewConnectionError('
<pip._vendor.urllib3.connection.HTTPConnection object at 0x7fb2f4e55f28>:
Failed to establish a new connection: [Errno 111] 連線被拒絕',)':
/repository/pypi-group/simple/pip/
設定index-url pip install Pillow --index-url=https://pypi.python.org/simple/
☁ root tmp空間不足
Could not install packages due to an EnvironmentError: [Errno 28] 裝置上已無多餘空間
在Jennifer（非root用戶）的位置建立一個root＿tmp資料夾，再指向tmpdir為此資料夾 mkdir root_tmp export TMPDIR=/home/jennifer/root_tmp
（若又跳坑，會再繼續更新）
