Add cloudwatch-functions

bash-my-aws · Aug 12, 2024 · c79d915 · c79d915
1 parent 2e1b86a
commit c79d915
Showing 1 changed file with 91 additions and 0 deletions.
diff --git a/lib/cloudwatch-functions b/lib/cloudwatch-functions
@@ -0,0 +1,91 @@
+#!/bin/bash
+#
+# cloudwatch-functions
+
+cloudwatch-alarms(){
+
+  # List Cloudwatch Alarms
+  #
+  #    USAGE: cloudwatch-alarms [filter]
+  #
+  #    $ things
+  #    thing-1234567890123  Online  Amazon Linux                              2           192.168.1.10    server001.example.com
+  #    thing-1234567890124  Offline Amazon Linux                              2           192.168.1.10    server001.example.com
+  #    thing-1234567890125  Online  Amazon Linux                              2           192.168.1.10    server001.example.com
+  #
+  #    *Optionally provide a filter string for a `| grep` effect with tighter columisation:*
+  #
+  #    $ things Online
+  #    i-1234567890123 Online  Microsoft Windows Server 2019 Datacenter  68.0.11111  192.168.1.10    server001.example.com
+  #    i-1234567890124 Online  Microsoft Windows Server 2022 Datacenter  68.0.11112  192.168.1.20    winserver002.example.com
+
+  local alarms=$(skim-stdin)
+  local filters=$(__bma_read_filters $@)
+
+  local arg_filters="${alarms:+--alarm-names "${alarms}"}"
+
+  aws cloudwatch describe-alarms \
+    $arg_filters \
+    --output text \
+    --query "
+      MetricAlarms[].[
+        AlarmName,
+        StateValue,
+        ActionsEnabled,
+        join(',', AlarmActions || \`[]\`)
+      ]" \
+  | grep -E -- "$filters" \
+  | LC_ALL=C sort -t $'\t' -k 1 \
+  | columnise
+}
+
+cloudwatch-alarm-delete() {
+  local alarms="$(skim-stdin "$@")"
+  [[ -z $alarms ]] && __bma_usage "alarm_name [alarm_name]" && return 1
+
+  alarm_names_json=$(printf "%s\n" "$alarms" | jq -R '.' | jq -crs '{"AlarmNames":.}')
+
+  echo "You are about to delete the following Cloudwatch Alarms:"
+  echo "$alarm_names_json" | jq .
+  [ -t 0 ] || exec </dev/tty # reattach keyboard to STDIN
+  local regex_yes="^[Yy]$"
+  read -p "Are you sure you want to continue? " -n 1 -r
+  echo
+  if [[ $REPLY =~ $regex_yes ]]; then
+    aws cloudwatch delete-alarms --cli-input-json "${alarm_names_json}"
+  fi
+}
+
+cloudwatch-alarm-actions-disable() {
+  local alarms="$(skim-stdin "$@")"
+  [[ -z $alarms ]] && __bma_usage "alarm_name [alarm_name]" && return 1
+
+  alarm_names_json=$(printf "%s\n" "$alarms" | jq -R '.' | jq -crs '{"AlarmNames":.}')
+
+  echo "You are about to disable alarm actions on the following Cloudwatch Alarms:"
+  echo "$alarm_names_json" | jq .
+  [ -t 0 ] || exec </dev/tty # reattach keyboard to STDIN
+  local regex_yes="^[Yy]$"
+  read -p "Are you sure you want to continue? " -n 1 -r
+  echo
+  if [[ $REPLY =~ $regex_yes ]]; then
+    aws cloudwatch disable-alarm-actions --cli-input-json "${alarm_names_json}"
+  fi
+}
+
+cloudwatch-alarm-actions-enable() {
+  local alarms="$(skim-stdin "$@")"
+  [[ -z $alarms ]] && __bma_usage "alarm_name [alarm_name]" && return 1
+
+  alarm_names_json=$(printf "%s\n" "$alarms" | jq -R '.' | jq -crs '{"AlarmNames":.}')
+
+  echo "You are about to enable alarm actions on the following Cloudwatch Alarms:"
+  echo "$alarm_names_json" | jq .
+  [ -t 0 ] || exec </dev/tty # reattach keyboard to STDIN
+  local regex_yes="^[Yy]$"
+  read -p "Are you sure you want to continue? " -n 1 -r
+  echo
+  if [[ $REPLY =~ $regex_yes ]]; then
+    aws cloudwatch enable-alarm-actions --cli-input-json "${alarm_names_json}"
+  fi
+}