tools/centos-mirror-tools
Scott Little ae68691bf0 Enable starlingx mirror
StarlingX needs to download a variety of rpms and tarballs
from various upstream sources.  Unfortunately the upstream sources
are not always dependable. Either servers go down, are unreachable,
or drop older content that we still depend on.

Our proposed solution is to run our own mirror to capture an
independent copy of the content needed by StarlingX.
For this purpose, a server has been set up at
http://mirror.starlingx.cengn.ca/mirror/centos

The mirror will use deterministic paths derived from the upstream
urls.  Scripts will be used to convert an upstream url to
the mirror's equivalent url (see function url_to_stx_mirror_url in
url_utils.sh)

The mirror will be refreshed daily.  New .lst entries will be
processed at that time.  Processing of changes under yum.repos.d
is not automated by this update.  Expect a follow-up update to
address this issue soon.  These scripts are found under the
'stx_mirror_scripts' subdirectory.

Changes are made to the download_mirror.sh script, and it's
supporting scripts.  New arguments have been added to each
script to select the download source.
   -s  StarlingX mirror only
   -S  StarlingX mirror, with upstream source as backup
   -u  Upstream source only
   -U  Upstream source, with StarlingX mirror as backup

You do not need to provide any of these flags.  Continue to
us download_mirror.sh as you always have.  The default
behavior is currently set to '-S', i.e. first try the
StarlingX mirror, with upstream source as backup.
If this proves to place to heavy a load on the existing
server, we might switch the default to '-U', i.e. first
try the upstream source, with StarlingX mirror as backup.
If poor download performance is seen, you might want to try
explicitly adding -U as an argument.

The remaining two options are not recommended for regular use.
Upstream only, i.e. '-u', restores original behaviour, but
you may once again encounter rpms that have aged out, and
been removed from their original repos.  StarlingX only,
i.e. '-s', is vulnerable if a .lst file has been updated,
but the mirror has not yet processed it.

Change-Id: I7e0f3d9fb99253662f9f4bf12457d39250408c0b
Story: 2003906
Task: 26785
Signed-off-by: Scott Little <scott.little@windriver.com>
2018-11-02 13:33:00 -04:00
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Create mirror for StarlingX

Step 0 - Build the container

Build the docker image on your Linux host (with Docker supported). NOTE: if necessary you might have to set http/https proxy in your Dockerfile before building the docker image below.

$ docker build -t <your_docker_image_name>:<your_image_version> -f Dockerfile .

Step 1 - Run the container

The container shall be run from the same directory where the other scripts are stored.

$ docker run -it -v $(pwd):/localdisk <your_docker_image_name>:<your_image_version>

The container can also be run the following way, so the download_mirror.sh runs automatically without having to enter the container and the step 2can be simplified.

$ docker run -it -v $(pwd):/localdisk <your_docker_image_name>:<your_image_version> download_mirror.sh

As /localdisk is defined as the workdir of the container, the same folder name should be used to define the volume. The container will start to run and populate a logs and output folders in this directory. The container shall be run from the same directory where the other scripts are stored.

step 2 - Run the download_mirror.sh script

Once inside the container run the downloader script

$ ./download_mirror.sh

NOTE: in case there are some downloading failures due to network instability (or timeout), you should download them manually, to assure you get all RPMs listed in "rpms_from_3rd_parties.lst" and "rpms_from_centos_repo.lst".

step 3 - Copy the files to the mirror

After all downloading complete, copy the download files to mirror.

$ find ./output -name "*.i686.rpm" | xargs rm -f $ chown 751:751 -R ./output $ cp -rf output/stx-r1/ <your_mirror_folder>/

In this case <your_mirror_folder> can be whatever folder you want to use as mirror.

step 4 - Tweaks in the StarlingX build system.

NOTE: step below is not needed if you've synced the latest codebase.

Go into StarlingX build system (another container which hosts cgcs build system), and follow up below steps:

Debugging issues

The download_mirror.sh script will create log files in the form of centos_rpms_*.txt. After the download is complete, it's recommended to check the content of these files to see if everything was downloaded correctly.

A quick look into these files could be:

$ cd output/ $ cat missing

In this case, there shoudn't be any package in the "missing" files.