Pass arguments to Dockerfile when you build it using --build-arg in order to have greater flexibility on docker build:

docker build -t essearch/ess-elasticsearch:1.7.6 --build-arg SHARDS_NO=5

If you want to pass multiple arguments to Dockerfile give another --build-arg and give your second argument as above.
Now initiate your args inside of Dockerfile as below:

ARG SHARDS_NO=""

#docker #container #build_arg #argument #build #image

In order to create a debian package from your shell script do as follow:

Let's consider our package name is dangling. We need to create 2 folders, first is called dangling and the second is DEBIAN which is inside of the dangling folder:

mkdir helloworld && mkdir helloworld/DEBIAN

You can copy the files into your package with the full paths on the destination filesystem. E.g. if you want to put a file in /usr/local/bin/ you put it in dangling/usr/local/bin/:

mkdir -p dangling/usr/local/bin
 cp /usr/local/bin/dangling.sh dangling/usr/local/bin/

In your DEBIAN directory (created at the begining of the post), create a control file with the below content:

<span class="Apple-style-span" style="font-family: Consolas, Monaco, monospace; font-size: 12px; white-space: pre;">Package: dangling
 </span><span class="Apple-style-span" style="font-family: Consolas, Monaco, monospace; font-size: 12px; white-space: pre;">Version: 0.1
 </span><span class="Apple-style-span" style="font-family: Consolas, Monaco, monospace; font-size: 12px; white-space: pre;">Maintainer: Alireza Hoseini
 </span><span class="Apple-style-span" style="font-family: Consolas, Monaco, monospace; font-size: 12px; white-space: pre;">Architecture: all
 </span><span class="Apple-style-span" style="font-family: Consolas, Monaco, monospace; font-size: 12px; white-space: pre;">Description: would wipe all docker dangling volumes out

NOTE: These are the mandatory fields in the control file.

Now build the package using dpkg-deb:

dpkg-deb --build dangling

This creates a dangling.deb file, which you can now install on any Debian installation with following command:

dpkg -i dangling.deb

#debian #deb #create #package #dpkg #build

If you are building a docker image using docker build and you want to force building the package use --no-cache:

docker build --no-cache

#docker #build #no_cache #cache #force