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add check for semver and build date in replace_binary() #66

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merged 1 commit into from
Jul 11, 2023
Merged

add check for semver and build date in replace_binary() #66

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91 changes: 91 additions & 0 deletions scripts/upgrade.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,26 @@ replace_binary() {
exit 0
fi

NEW_BIN_SEMVER="$($NEW_BINARY -v | grep -Po 'k3s version v\K[\d.]+')"
FULL_BIN_SEMVER="$($FULL_BIN_PATH -v | grep -Po 'k3s version v\K[\d.]+')"

compare_versions "$FULL_BIN_SEMVER" "$NEW_BIN_SEMVER"

if [ $? -eq 1 ]; then
echo "Error: Current version ${FULL_BIN_SEMVER} is higher than ${NEW_BIN_SEMVER}"
exit 1
fi

NEW_BIN_RELEASE_DATE="$($NEW_BINARY kubectl version --client=true -o yaml | grep -Po 'buildDate:\s+"\K[^"]+')"
FULL_NEW_BIN_RELEASE_DATE="$($FULL_BIN_PATH kubectl version --client=true -o yaml | grep -Po 'buildDate:\s+"\K[^"]+')"

compare_build_dates "$NEW_BIN_RELEASE_DATE" "$FULL_NEW_BIN_RELEASE_DATE"

if [ $? -eq 1 ]; then
echo "Error: Current build date ${FULL_BIN_RELEASE_DATE} is more recent than ${NEW_BIN_RELEASE_DATE}"
exit 1
fi

K3S_CONTEXT=$(getfilecon $FULL_BIN_PATH 2>/dev/null | awk '{print $2}' || true)
info "Deploying new k3s binary to $K3S_BIN_PATH"
cp $NEW_BINARY $FULL_BIN_PATH
Expand Down Expand Up @@ -135,6 +155,77 @@ verify_controlplane_versions() {
done
}

# Function to compare semantic versions
# Returns 0 if version1 <= version2, 1 otherwise
compare_versions() {
version1=$1
version2=$2

if [ "$version1" = "$version2" ]; then
return 0
fi

IFS=.
set -- $version1
version1_parts=$#
set -- $version2
version2_parts=$#

# Append additional parts to the version with fewer parts
if [ $version1_parts -lt $version2_parts ]; then
version1="${version1}.0"
elif [ $version2_parts -lt $version1_parts ]; then
version2="${version2}.0"
fi

IFS=.
set -- $version1
version1_parts=$#
set -- $version2
version2_parts=$#

for i in $(seq 1 $version1_parts); do
num1=$(eval echo \$"$i")
num2=$(eval echo \$"$i")

# Remove leading zeros
num1=$(echo "$num1" | sed 's/^0*//')
num2=$(echo "$num2" | sed 's/^0*//')

if [ -z "$num1" ]; then
num1=0
fi

if [ -z "$num2" ]; then
num2=0
fi

if [ $num1 -lt $num2 ]; then
return 0
elif [ $num1 -gt $num2 ]; then
return 1
fi
done

return 0
}

# Function to compare build dates
# Returns 0 if build_date1 <= build_date2, 1 otherwise
compare_build_dates() {
build_date1=$1
build_date2=$2

timestamp1=$(date -u -d "$build_date1" +%s)
timestamp2=$(date -u -d "$build_date2" +%s)

if [ "$timestamp1" -le "$timestamp2" ]; then
return 0
else
return 1
fi
}

upgrade() {
get_k3s_process_info
replace_binary
Expand Down