273 lines
6.0 KiB
Bash
273 lines
6.0 KiB
Bash
#!/usr/bin/env bash
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load 'libs/bats-support/load'
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# Podman and Toolbox commands to run
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readonly PODMAN=${PODMAN:-podman}
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readonly TOOLBOX=${TOOLBOX:-toolbox}
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readonly SKOPEO=$(command -v skopeo)
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# Helpful globals
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readonly IMAGE_CACHE_DIR="${BATS_RUN_TMPDIR}/image-cache"
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# Images
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declare -Ag IMAGES=([busybox]="quay.io/toolbox_tests/busybox" \
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[fedora]="registry.fedoraproject.org/fedora-toolbox" \
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[rhel]="registry.access.redhat.com/ubi8")
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function cleanup_all() {
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$PODMAN system reset --force >/dev/null
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}
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function cleanup_containers() {
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$PODMAN rm --all --force >/dev/null
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}
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# Pulls an image using Podman and saves it to a image dir using Skopeo
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#
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# Parameters
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# ==========
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# - distro - os-release field ID (e.g., fedora, rhel)
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# - version - os-release field VERSION_ID (e.g., 33, 34, 8.4)
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#
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# Only use during test suite setup for caching all images to be used throught
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# tests.
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function _pull_and_cache_distro_image() {
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local num_of_retries=5
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local timeout=10
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local pulled=false
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local distro
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local version
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local image
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local image_archive
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distro="$1"
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version="$2"
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if [ ! -v IMAGES[$distro] ]; then
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fail "Requested distro (${distro}) does not have a matching image"
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fi
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image="${IMAGES[$distro]}"
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image_archive="${distro}-toolbox"
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if [[ $# -eq 2 ]]; then
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image="${image}:${version}"
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image_archive="${image_archive}-${version}"
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fi
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for ((i = ${num_of_retries}; i > 0; i--)); do
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run $PODMAN pull ${image}
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if [ "$status" -eq 0 ]; then
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pulled=true
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break
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fi
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sleep $timeout
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done
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if ! $pulled; then
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echo "Failed to pull image ${image}"
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assert_success
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fi
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if [ ! -d ${IMAGE_CACHE_DIR} ]; then
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mkdir -p ${IMAGE_CACHE_DIR}
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fi
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run $SKOPEO copy --dest-compress containers-storage:${image} dir:${IMAGE_CACHE_DIR}/${image_archive}
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if [ "$status" -ne 0 ]; then
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echo "Failed to cache image ${image} to ${IMAGE_CACHE_DIR}/${image_archive}"
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assert_success
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fi
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cleanup_all
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}
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# Removes the folder with cached images
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function _clean_cached_images() {
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rm -rf ${IMAGE_CACHE_DIR}
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}
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# Copies an image from local storage to Podman's image store
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#
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# Call before creating any container. Network failures are not nice.
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#
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# An image has to be cached first. See _pull_and_cache_distro_image()
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#
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# Parameters:
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# ===========
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# - distro - os-release field ID (e.g., fedora, rhel)
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# - version - os-release field VERSION_ID (e.g., 33, 34, 8.4)
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function pull_distro_image() {
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local distro
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local version
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local image
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local image_archive
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distro="$1"
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version="$2"
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if [ ! -v IMAGES[$distro] ]; then
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fail "Requested distro (${distro}) does not have a matching image"
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fi
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image="${IMAGES[$distro]}"
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image_archive="${distro}-toolbox"
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if [[ -n $version ]]; then
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image="${image}:${version}"
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image_archive="${image_archive}-${version}"
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fi
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# No need to copy if the image is already available in Podman
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run $PODMAN image exists ${image}
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if [[ "$status" -eq 0 ]]; then
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return
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fi
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run $SKOPEO copy "dir:${IMAGE_CACHE_DIR}/${image_archive}" "containers-storage:${image}"
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if [ "$status" -ne 0 ]; then
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echo "Failed to load image ${image} from cache ${IMAGE_CACHE_DIR}/${image_archive}"
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assert_success
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fi
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$PODMAN images
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}
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# Copies the system's default image to Podman's image store
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#
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# See pull_default_image() for more info.
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function pull_default_image() {
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pull_distro_image $(get_system_id) $(get_system_version)
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}
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# Creates a container with specific name, distro and version
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#
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# Pulling of an image is taken care of by the function
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#
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# Parameters:
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# ===========
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# - distro - os-release field ID (e.g., fedora, rhel)
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# - version - os-release field VERSION_ID (e.g., 33, 34, 8.4)
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# - container_name - name of the container
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function create_distro_container() {
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local distro
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local version
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local container_name
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distro="$1"
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version="$2"
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container_name="$3"
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pull_distro_image ${distro} ${version}
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$TOOLBOX --assumeyes create --container "${container_name}" --distro "${distro}" --release "${version}" >/dev/null \
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|| fail "Toolbox couldn't create container '$container_name'"
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}
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# Creates a container with specific name matching the system
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#
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# Parameters:
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# ===========
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# - container_name - name of the container
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function create_container() {
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local container_name
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container_name="$1"
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create_distro_container $(get_system_id) $(get_system_version) $container_name
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}
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# Creates a default container
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function create_default_container() {
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pull_default_image
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$TOOLBOX --assumeyes create >/dev/null \
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|| fail "Toolbox couldn't create default container"
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}
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function start_container() {
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local container_name
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container_name="$1"
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$PODMAN start "$container_name" >/dev/null \
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|| fail "Podman couldn't start the container '$container_name'"
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}
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function stop_container() {
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local container_name
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container_name="$1"
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# Make sure the container is running before trying to stop it
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$PODMAN start "$container_name" >/dev/null \
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|| fail "Podman couldn't start the container '$container_name'"
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$PODMAN stop "$container_name" >/dev/null \
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|| fail "Podman couldn't stop the container '$container_name'"
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}
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function list_images() {
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$PODMAN images --all --quiet | wc -l
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}
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function list_containers() {
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$PODMAN ps --all --quiet | wc -l
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}
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# Returns the path to os-release
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function find_os_release() {
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if [[ -f "/etc/os-release" ]]; then
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echo "/etc/os-release"
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elif [[ -f "/usr/lib/os-release" ]]; then
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echo "/usr/lib/os-release"
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else
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echo ""
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fi
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}
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# Returns the content of field ID in os-release
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function get_system_id() {
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local os_release
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os_release="$(find_os_release)"
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if [[ -z "$os_release" ]]; then
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echo ""
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return
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fi
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echo $(awk -F= '/ID/ {print $2}' $os_release | head -n 1)
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}
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# Returns the content of field VERSION_ID in os-release
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function get_system_version() {
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local os_release
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os_release="$(find_os_release)"
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if [[ -z "$os_release" ]]; then
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echo ""
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return
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fi
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echo $(awk -F= '/VERSION_ID/ {print $2}' $os_release | head -n 1)
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}
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