Created
March 15, 2024 13:20
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Track haproxy config changes
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commit 22b7604a9aa18ac729707f5c0d82b17ad3ea80ab | |
Author: Andrew McDermott <amcdermo@redhat.com> | |
Date: Fri Mar 15 13:11:47 2024 +0000 | |
reloads: track changes via diff | |
diff --git a/images/router/haproxy/reload-haproxy b/images/router/haproxy/reload-haproxy | |
index e0733ec2..cf94d121 100755 | |
--- a/images/router/haproxy/reload-haproxy | |
+++ b/images/router/haproxy/reload-haproxy | |
@@ -73,6 +73,56 @@ if [ -n "${ROUTER_SHUTDOWN-}" ]; then | |
exit 1 | |
fi | |
+set -x | |
+ | |
+# Base directory for reloads | |
+base_dir="reloads" | |
+ | |
+# Directories for storing snapshots, unified diffs, and traditional diffs | |
+snapshot_dir="${base_dir}/snapshots" | |
+unified_diff_dir="${base_dir}/changes/unified" | |
+traditional_diff_dir="${base_dir}/changes/traditional" | |
+ | |
+# Generate a timestamp | |
+current_date=$(date "+%Y-%m-%d_%H%M%S") | |
+ | |
+mkdir -p "$snapshot_dir" | |
+mkdir -p "$unified_diff_dir" | |
+mkdir -p "$traditional_diff_dir" | |
+ | |
+# Snapshot directory for this change | |
+current_snapshot_dir="${snapshot_dir}/${current_date}" | |
+mkdir -p "$current_snapshot_dir" | |
+ | |
+# Save snapshots if the previous configuration exists | |
+if [ -f "${config_file}.last" ]; then | |
+ cp "${config_file}.last" "${current_snapshot_dir}/haproxy.config.prev" | |
+ cp "$config_file" "${current_snapshot_dir}/haproxy.config.curr" | |
+ diff -u "${config_file}.last" "$config_file" > "${unified_diff_dir}/${current_date}.diff" | |
+ diff "${config_file}.last" "$config_file" > "${traditional_diff_dir}/${current_date}.diff" | |
+fi | |
+ | |
+prune_dir() { | |
+ local dir=$1 | |
+ pushd "$dir" > /dev/null 2>&1 || { echo "Failed to enter directory $dir"; return; } | |
+ num_files=$(ls -1 | wc -l) | |
+ num_delete=$((num_files - 250)) | |
+ | |
+ if [ "$num_delete" -gt 0 ]; then | |
+ # Delete the oldest files if there are more files than the target | |
+ ls -1tr | head -n "$num_delete" | xargs -I {} rm -rf "{}" | |
+ fi | |
+ | |
+ popd > /dev/null 2>&1 | |
+} | |
+ | |
+# Prune snapshots, unified diffs, and traditional diffs directories | |
+prune_dir "$snapshot_dir" | |
+prune_dir "$unified_diff_dir" | |
+prune_dir "$traditional_diff_dir" | |
+ | |
+set +x | |
+ | |
reload_status=0 | |
if [ -n "$old_pids" ]; then | |
/usr/sbin/haproxy -f $config_file -p $pid_file -x /var/lib/haproxy/run/haproxy.sock -sf $old_pids | |
@@ -82,5 +132,7 @@ else | |
reload_status=$? | |
fi | |
+cp $config_file ${config_file}.last | |
+ | |
[ $reload_status -ne 0 ] && exit $reload_status | |
haproxyHealthCheck |
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