loki/tools/release_prepare.sh

#!/bin/sh

echo
echo "Last 5 tags:"
git tag --sort=-taggerdate | head -n 5
echo

read -p "Enter release version: " VERSION

if [[ ${VERSION} =~ ^v[0-9]+\.[0-9]+\.[0-9]+.*$ ]]; then
    echo "New Version: ${VERSION}"
else
    echo "Version must be in the format v0.1.0"
    exit 1
fi

LOKI_CURRENT=$(sed -n -e 's/^version: //p' production/helm/loki/Chart.yaml)
LOKI_SUGGESTED=$(tools/increment_version.sh -m ${LOKI_CURRENT})
PROMTAIL_CURRENT=$(sed -n -e 's/^version: //p' production/helm/promtail/Chart.yaml)
PROMTAIL_SUGGESTED=$(tools/increment_version.sh -m ${PROMTAIL_CURRENT})
LOKI_STACK_CURRENT=$(sed -n -e 's/^version: //p' production/helm/loki-stack/Chart.yaml)
LOKI_STACK_SUGGESTED=$(tools/increment_version.sh -m ${LOKI_STACK_CURRENT})
echo
echo "Current Loki helm chart version: ${LOKI_CURRENT}"
read -p "Enter new Loki helm chart version [${LOKI_SUGGESTED}]: " LOKI_VERSION
LOKI_VERSION=${LOKI_VERSION:-${LOKI_SUGGESTED}}
echo
echo "Current Promtail helm chart version: ${PROMTAIL_CURRENT}"
read -p "Enter new Promtail helm chart version [${PROMTAIL_SUGGESTED}]: " PROMTAIL_VERSION
PROMTAIL_VERSION=${PROMTAIL_VERSION:-${PROMTAIL_SUGGESTED}}
echo
echo "Current Loki-Stack helm chart version: ${LOKI_STACK_CURRENT}"
read -p "Enter new Loki-Stack helm chart version [${LOKI_STACK_SUGGESTED}]: " LOKI_STACK_VERSION
LOKI_STACK_VERSION=${LOKI_STACK_VERSION:-${LOKI_STACK_SUGGESTED}}
echo

echo "Creating Release"
echo "Release Version:       ${VERSION}"
echo "Loki Helm Chart:       ${LOKI_VERSION}"
echo "Promtail Helm Chart:   ${PROMTAIL_VERSION}"
echo "Loki-Stack Helm Chart: ${LOKI_STACK_VERSION}"
echo
read -p "Is this correct? [y]: " CONTINUE
CONTINUE=${CONTINUE:-y}
echo

if [[ "${CONTINUE}" != "y" ]]; then
 exit 1
fi

echo "Updating helm and ksonnet image versions"
sed -i '' "s/.*promtail:.*/    promtail: '\''grafana\/promtail:${VERSION}'\'',/" production/ksonnet/promtail/config.libsonnet
sed -i '' "s/.*loki:.*/    loki: '\''grafana\/loki:${VERSION}'\'',/" production/ksonnet/loki/images.libsonnet
sed -i '' "s/.*tag:.*/  tag: ${VERSION}/" production/helm/loki/values.yaml
sed -i '' "s/.*tag:.*/  tag: ${VERSION}/" production/helm/promtail/values.yaml

echo "Updating helm charts"
sed -i '' "s/^version:.*/version: ${LOKI_VERSION}/" production/helm/loki/Chart.yaml
sed -i '' "s/^version:.*/version: ${PROMTAIL_VERSION}/" production/helm/promtail/Chart.yaml
sed -i '' "s/^version:.*/version: ${LOKI_STACK_VERSION}/" production/helm/loki-stack/Chart.yaml
echo
echo "######################################################################################################"
echo "NEXT STEPS"
echo
echo "Verify the changes, then commit and push and get them merged to master"
echo
echo "Once merged to master"
echo
echo "git pull"
echo "git tag -a ${VERSION} -m \"tagging release ${VERSION}\""
echo "git push origin ${VERSION}"
echo
echo "This should initiate the CircleCI build to push the images and finish the release"
echo "######################################################################################################"