Build Docker Images
Build Docker Images By Writing DockerFile
DockerFile file
FROM debian:jessie
RUN apt-get update
RUN apt-get install -y git
RUN apt-get install -y vim
CMD ["echo", "Hello world"]
Refer this for more detail
Alternate
FROM debian:jessie
RUN apt-get update && apt-get install -y \
git \
vim
CMD ["echo", "Hello world"]
Refer the command line reference for more detail.
docker build command
PS D:\practices\docker> docker build -t nadeem/debian .
Sending build context to Docker daemon 86.53kB
Step 1/5 : FROM debian:jessie
---> 51a215bbbb19
Step 2/5 : RUN apt-get update
---> Using cache
---> d04c2723e2ef
Step 3/5 : RUN apt-get install -y git
---> Using cache
---> 381bfd490d58
Step 4/5 : RUN apt-get install -y vim
---> Using cache
---> 5176427bc829
Step 5/5 : CMD ["echo", "Hello world"]
---> Running in ad604ba6aa2d
Removing intermediate container ad604ba6aa2d
---> 30a028e42657
Successfully built 30a028e42657
Successfully tagged nadeem/debian:latest
SECURITY WARNING: You are building a Docker image from Windows against a non-Windows Docker host. All files and directories added to build context will have '-rwxr-xr-x' permissions. It is recommended to double check and reset permissions for sensitive files and directories.
PS D:\practices\docker>
Refer the command line reference for more detail.
PS D:\practices\docker> docker run nadeem/debian
Hello world
PS D:\practices\docker>
Build Docker Images By Using Docker Commit
PS D:\practices\docker> docker run -it debian:jessie
root@499a341a47d3:/# git
bash: git: command not found
root@499a341a47d3:/# apt-get update && apt-get install -y git
0% [Connecting to deb.debian.org (149.20.4.15)] [Connecting to security.debian.org (149.20.4.14)]
PS D:\practices\docker> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
499a341a47d3 debian:jessie "bash" 6 minutes ago Exited (0) 6 seconds ago compassionate_kowalevski
PS D:\practices\docker> docker commit 499a341a47d3 nadeem/debian:1.00
sha256:d38c806450ed21ed5e88236bb182b459a8ae0465fca0f089149705f64c7a0f3b
PS D:\practices\docker>
Refer the command line reference for more detail.
PS D:\practices\docker> docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nadeem/debian 1.00 d38c806450ed 52 seconds ago 222MB
PS D:\practices\docker> docker run -it nadeem/debian:1.00
root@0d7de21de33a:/# git
usage: git [--version] [--help] [-C <path>] [-c name=value]
[--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]
[-p|--paginate|--no-pager] [--no-replace-objects] [--bare]
[--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]
<command> [<args>]
The most commonly used git commands are:
add Add file contents to the index
bisect Find by binary search the change that introduced a bug
branch List, create, or delete branches
checkout Checkout a branch or paths to the working tree
clone Clone a repository into a new directory
commit Record changes to the repository
diff Show changes between commits, commit and working tree, etc
fetch Download objects and refs from another repository
grep Print lines matching a pattern
init Create an empty Git repository or reinitialize an existing one
log Show commit logs
merge Join two or more development histories together
mv Move or rename a file, a directory, or a symlink
pull Fetch from and integrate with another repository or a local branch
push Update remote refs along with associated objects
rebase Forward-port local commits to the updated upstream head
reset Reset current HEAD to the specified state
rm Remove files from the working tree and from the index
show Show various types of objects
status Show the working tree status
tag Create, list, delete or verify a tag object signed with GPG
'git help -a' and 'git help -g' lists available subcommands and some
concept guides. See 'git help <command>' or 'git help <concept>'
to read about a specific subcommand or concept.
root@0d7de21de33a:/#