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feat: Update Script With Airgap Functionality #11

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feat: Update Script With Airgap Functionality #11

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35 changes: 27 additions & 8 deletions bin/harv-purge-images.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -15,35 +15,54 @@ cleanup() {

show_help_msg() {
echo 'To purge all container images that no longer required by the current Harvester version.'
echo ''
echo 'Note: for airgap we expect their to be a folder with the current version on the web server - as well as a folder with the previous version on the web server.'
echo 'Nested inside each of these folders should be a file called image-lists.tar.gz, which contains a list of all the images that are required for that version of Harvester.'
echo ' '
echo 'Usage: '
echo ' ./harv-purge-images.sh <previous_version> <current_version> '
echo ' ./harv-purge-images.sh <previous_version> <current_version> <airgap-url> '
echo ' '
echo 'Example: '
echo ' # This will purge all images introduced by v1.1.2 but no longer required by v1.2.0 '
echo ' ./harv-purge-images.sh v1.1.2 v1.2.0 '
echo 'Example Airgap: '
echo ' # This will purge all images introduced by v1.1.2 but no longer required by v1.2.0 using airgap url to fetch image-lists.tar.gz for respective versions under their respective directories '
echo ' ./harv-purge-images.sh v1.1.2 v1.2.0 http://192.168.12.202:5000/harvester/ '
echo 'Note: if airgap-url is provided but is https, you will need to prepare the CA for the file-server/web-server and place on each node in /etc/pki/trust/anchors/ then run update-ca-certificates'
}

collect_image_list() {
prev_ver=$1
cur_ver=$2

airgap_url=$3

mkdir "$TMP_DIR"/"$prev_ver"
mkdir "$TMP_DIR"/"$cur_ver"

echo "Fetching $prev_ver image lists..."
curl -fL https://releases.rancher.com/harvester/"$prev_ver"/image-lists.tar.gz -o "$TMP_DIR"/"$prev_ver"/image-lists.tar.gz
if [ -z $airgap_url ]
then
curl -fL https://releases.rancher.com/harvester/"$prev_ver"/image-lists.tar.gz -o "$TMP_DIR"/"$prev_ver"/image-lists.tar.gz
else
curl -fL $airgap_url/"$prev_ver"/image-lists.tar.gz -o "$TMP_DIR"/"$prev_ver"/image-lists.tar.gz
fi
tar -zxvf "$TMP_DIR"/"$prev_ver"/image-lists.tar.gz -C "$TMP_DIR"/"$prev_ver"/
echo "Fetching $cur_ver image lists..."
curl -fL https://releases.rancher.com/harvester/"$cur_ver"/image-lists.tar.gz -o "$TMP_DIR"/"$cur_ver"/image-lists.tar.gz
if [ -z $airgap_url ]
then
curl -fL https://releases.rancher.com/harvester/"$cur_ver"/image-lists.tar.gz -o "$TMP_DIR"/"$cur_ver"/image-lists.tar.gz
else
curl -fL $airgap_url/"$cur_ver"/image-lists.tar.gz -o "$TMP_DIR"/"$cur_ver"/image-lists.tar.gz
fi
tar -zxvf "$TMP_DIR"/"$cur_ver"/image-lists.tar.gz -C "$TMP_DIR"/"$cur_ver"/

prev_image_list="$TMP_DIR"/prev_image_list.txt
cur_image_list="$TMP_DIR"/cur_image_list.txt

cat "$TMP_DIR"/"$prev_ver"/image-lists/*.txt | sort | uniq > "$prev_image_list"
cat "$TMP_DIR"/"$cur_ver"/image-lists/*.txt | sort | uniq > "$cur_image_list"

echo '+------------------------------------------------------+'
echo '| Images that are going to be REMOVED are listed BELOW |'
echo '+------------------------------------------------------+'
Expand All @@ -55,7 +74,7 @@ collect_image_list() {

main() {
# Sanity check
if [ $# -ne 2 ]; then
if [ $# -ne 2 ] | [ $# -ne 3 ]; then
show_help_msg
exit 1
fi
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