ci: bump Fedora image version to 33

The testsuite will soon be switching to testing multiple filesystems,
which exposes a bug in F32 image's kernel. Since Fedora 33 has been
released recently and the testsuite runs just fine on it, just bump the
image version to avoid the bug.

This commit also fixes the script to read out the Fedora image version
from environment variables instead of using hard-coded values.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>

.travis.yml

@@ -36,7 +36,7 @@ matrix:
       env: PYVER=python3.8 RUBYLIBVER=2.7 LINKER=bfd
   include:
     - compiler: gcc
-      env: TRAVIS_RUN_KVM=true TRAVIS_CLOUD_IMAGE_VERSION="32:1.6"
+      env: TRAVIS_RUN_KVM=true FEDORA_MAJOR=33 FEDORA_MINOR=1.2
       install:
         - skip
       before_script:

scripts/ci/travis-kvm-setup.sh

@@ -7,13 +7,15 @@ TEST_RUNNER="scripts/ci/fedora-test-runner.sh"
 #
 # Variables for controlling the Fedora Image version and download URLs.
 #
-MAJOR_VERSION="32"
-MINOR_VERSION="1.6"
+if [ -z "$FEDORA_MAJOR" ] || [ -z "$FEDORA_MINOR" ]; then
+    echo "$0: FEDORA_MAJOR and FEDORA_MINOR must be set!" 1>&2
+    exit 1
+fi
 
 BASE_URL="https://download.fedoraproject.org/pub/fedora/linux/releases"
-IMAGE_BASE_NAME="Fedora-Cloud-Base-$MAJOR_VERSION-$MINOR_VERSION.x86_64"
-IMAGE_URL="$BASE_URL/$MAJOR_VERSION/Cloud/x86_64/images/$IMAGE_BASE_NAME.raw.xz"
-CHECK_URL="$BASE_URL/$MAJOR_VERSION/Cloud/x86_64/images/Fedora-Cloud-$MAJOR_VERSION-$MINOR_VERSION-x86_64-CHECKSUM"
+IMAGE_BASE_NAME="Fedora-Cloud-Base-$FEDORA_MAJOR-$FEDORA_MINOR.x86_64"
+IMAGE_URL="$BASE_URL/$FEDORA_MAJOR/Cloud/x86_64/images/$IMAGE_BASE_NAME.raw.xz"
+CHECK_URL="$BASE_URL/$FEDORA_MAJOR/Cloud/x86_64/images/Fedora-Cloud-$FEDORA_MAJOR-$FEDORA_MINOR-x86_64-CHECKSUM"
 GPG_URL="https://getfedora.org/static/fedora.gpg"
 
 #