From 04f48ea384d1cdc303da37ceb415afb5522cae9e Mon Sep 17 00:00:00 2001
From: Stefan Reimer <stefan@zero-downtime.net>
Date: Fri, 26 Mar 2021 12:58:40 +0100
Subject: [PATCH] docs: Update upgrade v2.19 documentation

---
 docs/Upgrade-2.19.md            |  5 ++++-
 scripts/git-pre-receive-hook.sh | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 scripts/git-pre-receive-hook.sh

diff --git a/docs/Upgrade-2.19.md b/docs/Upgrade-2.19.md
index 5aed758e..9029dbad 100644
--- a/docs/Upgrade-2.19.md
+++ b/docs/Upgrade-2.19.md
@@ -37,6 +37,9 @@ This change was required to enable node restrictions via the upstream aws-iam-au
   `./bootstrap.sh crds all clusters/$CLUSTER ../../../kubezero/charts`
 
 ### Components
+- delete old fluentd deployement because labels are immutable and they changed due to the migration to new upstream helm chart  
+`kubectl delete deployment logging-fluentd -n logging`
+
 `./bootstrap.sh deploy all clusters/$CLUSTER ../../../kubezero/charts`
 
 ## Upgrade - ArgoCD
@@ -48,4 +51,4 @@ This change was required to enable node restrictions via the upstream aws-iam-au
 ## Verification / Tests
 - check if all pods are RUNNING
 - check any Ingress services
-- ...
\ No newline at end of file
+- ...
diff --git a/scripts/git-pre-receive-hook.sh b/scripts/git-pre-receive-hook.sh
new file mode 100644
index 00000000..d80aaeb6
--- /dev/null
+++ b/scripts/git-pre-receive-hook.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+#
+# Reject pushes that contain commits with messages that do not adhere
+# to the defined regex.
+
+# [1] https://www.conventionalcommits.org/en/v1.0.0/#specification
+
+set -e
+
+zero_commit='0000000000000000000000000000000000000000'
+msg_regex='/^((fixup! |squash! )?(\w+)(?:\(([^\)\s]+)\))?: (.+))(?:\n|$){0,2}?((?:^.+(\n|$))+(?:\n|$){0,2}?)+((?:^.+(\n|$))+)+/gm'
+
+while read -r oldrev newrev refname; do
+  # Branch or tag got deleted, ignore the push
+  [ "$newrev" = "$zero_commit" ] && continue
+
+  # Calculate range for new branch/updated branch
+  [ "$oldrev" = "$zero_commit" ] && range="$newrev" || range="$oldrev..$newrev"
+
+  for commit in $(git rev-list "$range" --not --all); do
+    if ! git log --max-count=1 --format=%B $commit | grep -iqE "$msg_regex"; then
+      echo "ERROR:"
+      echo "ERROR: Your push was rejected because the commit"
+      echo "ERROR: $commit in ${refname#refs/heads/}"
+      echo "ERROR: is not adhering to convential commit format."
+      echo "ERROR:"
+      echo "ERROR: Please fix the commit message and push again."
+      echo "ERROR: https://www.conventionalcommits.org/en/v1.0.0/#specification"
+      echo "ERROR"
+      exit 1
+    fi
+  done
+done