Revert "containers: replace docker.io hub with quay.io hub"

The quay.io does not provides a way to disable the build cache[1],
switching back to docker.io which can.

[1]: https://issues.redhat.com/browse/PROJQUAY-474

This reverts commit 45dc9cf77b1a35b823742c258c8e51ef89603a5d.

Signed-off-by: Gris Ge <fge@redhat.com>

automation/README.md

@@ -4,8 +4,8 @@ It may be used both locally and through CI.
 
 ## Components
 - Container specifications to be used for the tests are in the `packaging`
-  directory. The images are published on quay hub:
-  https://quay.io/organization/nmstate
+  directory. The images are published on docker hub:
+  https://hub.docker.com/r/nmstate/
 
 - run-tests.sh: Execute the tests in a container using
   'nmstate/fedora-nmstate-dev' container image.
@@ -79,11 +79,11 @@ or:
 To test the image, either specify it manually as described above or tag it locally:
 
 ```
-podman tag local/centos8-nmstate-dev quay.io/nmstate/centos8-nmstate-dev:latest
-podman tag local/fedora-nmstate-dev quay.io/nmstate/fedora-nmstate-dev:latest
+podman tag local/centos8-nmstate-dev docker.io/nmstate/centos8-nmstate-dev:latest
+podman tag local/fedora-nmstate-dev docker.io/nmstate/fedora-nmstate-dev:latest
 ```
 
-### Push local image to the quay hub
+### Push local image to the docker hub
 The container images are automatically rebuilt for new commits to the master
 branch or new tags. Therefore updates to the Docker Hub images should always
 happen with a pull request that is merged to ensure that the change is
@@ -91,14 +91,14 @@ persistent. If this is not feasible, a new build could be pushed as follow to
 the Docker Hub:
 
 ```shell
-podman login quay.io
+podman login docker.io
 podman tag local/centos8-nmstate-dev nmstate/centos8-nmstate-dev:latest
 podman push nmstate/centos8-nmstate-dev:latest \
-    quay://quay.io/nmstate/centos8-nmstate-dev:latest
+    docker://docker.io/nmstate/centos8-nmstate-dev:latest
 
 podman tag local/fedora-nmstate-dev nmstate/fedora-nmstate-dev:latest
 podman push nmstate/fedora-nmstate-dev:latest \
-    quay://quay.io/nmstate/fedora-nmstate-dev:latest
+    docker://docker.io/nmstate/fedora-nmstate-dev:latest
 ```
 
 It will be overwritten after the next commit to master, though.

automation/run-tests.sh

@@ -15,8 +15,8 @@ TEST_TYPE_UNIT_PY38="unit_py38"
 TEST_TYPE_INTEG="integ"
 TEST_TYPE_INTEG_SLOW="integ_slow"
 
-FEDORA_IMAGE_DEV="quay.io/nmstate/fedora-nmstate-dev"
-CENTOS_IMAGE_DEV="quay.io/nmstate/centos8-nmstate-dev"
+FEDORA_IMAGE_DEV="docker.io/nmstate/fedora-nmstate-dev"
+CENTOS_IMAGE_DEV="docker.io/nmstate/centos8-nmstate-dev"
 
 PYTEST_OPTIONS="--verbose --verbose \
         --log-level=DEBUG \

packaging/README-container-registry.md

@@ -1,12 +0,0 @@
-## Quay
-
-The images are automatically rebuilt on new GIT tags or pushes to any branch:
-
-Configuration (here for `fedora-nmstate-dev`, the other build just specifies
-a different container spec (Dockerfile location):
-
-Container spec: /packaging/Dockerfile.fedora-nmstate-dev
-
-Build context: /packaging
-
-The tags are named after the branch/tag that triggered the build.

packaging/README-dockerhub.md

@@ -0,0 +1,41 @@
+## Docker Hub
+
+The images are automatically rebuilt on new GIT tags or pushes to the master branch:
+
+`Dockerfile.fedora-nmstate-dev` by https://cloud.docker.com/u/nmstate/repository/docker/nmstate/fedora-nmstate-dev
+
+The base image contains a common base that is used both for the development
+image and for the distributed image.
+
+Configuration (here for `fedora-nmstate-dev`, the other build just specifies
+a different container spec (Dockerfile location):
+
+Source repo: nmstate/nmstate
+Autotest: Off
+Repository Links: Off
+Build rules:
+Branch:
+Source:master
+Docker Tag:latest
+Dockerfile location:Dockerfile.fedora-nmstate-dev
+Build Context:/packaging
+Autobuild:on
+Build Caching:off
+
+Tag:
+Source: /^v[0-9.]+$/
+Docker Tag:{sourceref}
+Dockerfile location:Dockerfile.fedora-nmstate-dev
+Build Context:/packaging
+Autobuild:on
+Build Caching:off
+
+## Manual Building
+
+The Nmstate user image builds the master master branch by default. To specify a
+different commit or tag, specify the `SOURCE_COMMIT` build argument:
+
+```shell
+./build-container.sh --extra-args "--build-arg SOURCE_COMMIT=v0.0.6" nmstate/fedora-nmstate-dev
+
+```

packaging/build-container.sh

@@ -22,7 +22,7 @@ EXEC_PATH="$(dirname "$(realpath "$0")")"
 PROJECT_PATH="$(dirname $EXEC_PATH)"
 
 DEFAULT_BUILD_FLAGS="--no-cache --rm"
-DEFAULT_TAG_PREFIX="quay.io/nmstate"
+DEFAULT_TAG_PREFIX="docker.io/nmstate"
 
 : ${CONTAINER_CMD:=podman}