From Fedora Project Wiki

(Rootless and privileged modes matrix)
(make all the cmdlines look the same)
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podman build -t rootless-test-fcct .
podman build -t rootless-test-fcct .
</pre>
</pre>
<li> Try running the container, e.g. `podman run -ti --rm rootless-test-fcct --help`.
<li> Try running the container, e.g.:
<pre>podman run -ti --rm rootless-test-fcct --help</pre>
<li> Now try to build the same container, using privileged `podman`:
<li> Now try to build the same container, using privileged `podman`:
<pre>
<pre>
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sudo podman build -t privileged-test-fcct .
sudo podman build -t privileged-test-fcct .
</pre>
</pre>
<li> Try running the container, e.g. `sudo podman run -ti --rm privileged-test-fcct --help`.
<li> Try running the container, e.g.:
 
<pre>sudo podman run -ti --rm privileged-test-fcct --help</pre>
<li> Now, use privileged `docker` to build the container. Note that this should be performed on a different fresh Fedora CoreOS machine since there are [https://docs.fedoraproject.org/en-US/fedora-coreos/faq/#_can_i_run_containers_via_docker_and_podman_at_the_same_time known conflicts between `podman` and `docker`]:
<li> Now, use privileged `docker` to build the container. Note that this should be performed on a different fresh Fedora CoreOS machine since there are [https://docs.fedoraproject.org/en-US/fedora-coreos/faq/#_can_i_run_containers_via_docker_and_podman_at_the_same_time known conflicts between `podman` and `docker`]:
<pre>
<pre>
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sudo docker build -t docker-fcct .
sudo docker build -t docker-fcct .
</pre>
</pre>
<li> Try running the container, e.g. `sudo docker run -ti --rm docker-fcct --help`.
<li> Try running the container, e.g.:
<pre>sudo docker run -ti --rm docker-fcct --help</pre>
</ol>
</ol>


Revision as of 13:00, 8 June 2020

Description

Install Fedora CoreOS and build and run containers.

Setup

  1. Have access to a (or install a new) FCOS instance running the next stream.

How to test

  1. Using rootless podman, build fcct from a Dockerfile, which is the tool you've used to convert FCCs to Ignition configs. To do this: 
    git clone https://github.com/coreos/fcct /tmp/fcct
cd /tmp/fcct
podman build -t rootless-test-fcct .
  2. Try running the container, e.g.: 
    podman run -ti --rm rootless-test-fcct --help
  3. Now try to build the same container, using privileged podman: 
    cd /tmp/fcct
sudo podman build -t privileged-test-fcct .
  4. Try running the container, e.g.: 
    sudo podman run -ti --rm privileged-test-fcct --help
  5. Now, use privileged docker to build the container. Note that this should be performed on a different fresh Fedora CoreOS machine since there are known conflicts between podman and docker: 
    git clone https://github.com/coreos/fcct
cd /tmp/fcct
sudo docker build -t docker-fcct .
  6. Try running the container, e.g.: 
    sudo docker run -ti --rm docker-fcct --help

Expected Results

  1. You can build a container using podman in rootless mode.
  2. You can run a built container using podman in rootless mode.
  3. You can build a container using podman in privileged mode.
  4. You can run a built container using podman in privileged mode.
  5. You can build a container using docker in privileged mode.
  6. You can run a built container using docker in privileged mode.

Optional

  1. If you're familiar with other containerized software, try building and running them too.
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