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added some apt-get tweaks #333

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added some apt-get tweaks #333

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Commits on Mar 2, 2020

  1. added some cleanup tweaks 

    By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages . 

By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.

This results in smaller downloads and installation of packages .

Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .

Removed "sudo" as docker best practice at [Docker Blog](https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user) 

Another Cleanup tweaks using 

1. apt-get clean 

2. rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

removing downloaded packages and packages list will free up some space ,

results in smaller image size.
    @Rajpratik71
    Rajpratik71 committed Mar 2, 2020
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  2. Update clean_ubuntu_14.04.sh 

    By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages . 

By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.

This results in smaller downloads and installation of packages .

Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .

removing packages with "--purge"  will clean the residual configurations of the packages.

results in smaller image size.
    @Rajpratik71
    Rajpratik71 committed Mar 2, 2020
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  3. some apt-get tweaks 

    By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages . 

By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.

This results in smaller downloads and installation of packages .

Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .

removing packages with "--purge"  will clean the residual configurations of the packages.
    @Rajpratik71
    Rajpratik71 committed Mar 2, 2020
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    14c1444 View commit details
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  4. some apt-get tweaks 

    By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages . 

By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.

This results in smaller downloads and installation of packages .

Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .

removing packages with "--purge"  will clean the residual configurations of the packages.
    @Rajpratik71
    Rajpratik71 committed Mar 2, 2020
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    fea3837 View commit details
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  5. some apt-get tweaks 

    By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages . 

By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.

This results in smaller downloads and installation of packages .

Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .

removing packages with "--purge"  will clean the residual configurations of the packages.
    @Rajpratik71
    Rajpratik71 committed Mar 2, 2020
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    8285929 View commit details
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  6. some apt-get tweaks 

    By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages . 

By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.

This results in smaller downloads and installation of packages .

Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .

removing packages with "--purge"  will clean the residual configurations of the packages.
    @Rajpratik71
    Rajpratik71 committed Mar 2, 2020
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    Copy the full SHA
    e6e945d View commit details
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