Some changes and modifications

charts/barman/.helmignore

@@ -0,0 +1,3 @@
+*.tgz
+.vscode
+.idea

charts/barman/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: barman
 type: application
 description: Chart for Barman PostgreSQL Backup and Recovery Manager
-version: 0.8.1
+version: 0.9.0
 appVersion: "v2.19"
 keywords:
   - barman

charts/barman/examples/barman.yaml

@@ -15,6 +15,8 @@ deployment:
     # deployment.strategy needs to be set to Recreate if the underlying PVC does
     # not support multi-attach.
     type: Recreate
+    additionalENVs:
+      TZ: "Asia/Tehran"
 resources:
   requests:
     cpu: 100m
@@ -75,10 +77,13 @@ barman:
   lastBackupMaximumAge: "1 day"
   backupSchedule: "0 4 * * *"
   databaseSlotName: barman
+  postBackupRetryScript: tar -zcvf data.tar.gz -C /var/lib/barman/pg/base/$BARMAN_BACKUP_ID/data . --remove-files
+  preRecoveryRetryScript: mkdir /var/lib/barman/pg/base/$BARMAN_BACKUP_ID/data; tar -xvzf data.tar.gz -C /var/lib/barman/pg/base/$BARMAN_BACKUP_ID/data; rm data.tar.gz
   # server specific backup configs, add an entry for each db you backup
   backups:
     - backupMethod: postgres
       backupSchedule: "0 4 * * *"
+      scopeName: "pg"
       databaseSlotName: barman
       lastBackupMaximumAge: "1 day"
       # namespace the db is in

charts/barman/templates/configmap-barman-backups.yaml

@@ -6,8 +6,8 @@ metadata:
     {{- include "barman.labels" . | nindent 4 }}
 data:
   {{- range .Values.barman.backups }}
-  {{ .postgresql.host }}.conf: |
-      [{{ .postgresql.host }}]
+  {{ .scopeName }}.conf: |
+      [{{ .scopeName }}]
       active = true
       description = "PostgreSQL Database (Streaming-Only)"
       conninfo = host={{ .postgresql.host }} user={{ .postgresql.superUser }} dbname={{ .postgresql.superUserDatabase }}

charts/barman/templates/configmap-barman-cron.yaml

@@ -7,19 +7,11 @@ metadata:
 data:
   barman: |
       {{- range .Values.barman.backups }}
-      {{- if hasKey . "createDatabaseSlot" }}
-      {{- if .createDatabaseSlot }}
-      * * * * * barman /usr/local/bin/barman receive-wal --create-slot {{ .postgresql.host }}; /usr/local/bin/barman cron
-      {{- end }}
-      {{- else }}
-      {{- if $.Values.barman.createDatabaseSlot }}
-      * * * * * barman /usr/local/bin/barman receive-wal --create-slot {{ .postgresql.host }}; /usr/local/bin/barman cron
-      {{- end }}
-      {{- end }}
+      * * * * * barman /usr/local/bin/barman cron
       {{- if hasKey . "backupSchedule" }}
-      {{ .backupSchedule }} barman /usr/local/bin/barman backup {{ .postgresql.host }}
+      {{ .backupSchedule }} barman /usr/local/bin/barman backup {{ .scopeName }}
       {{- else }}
-      {{ $.Values.barman.backupSchedule }} barman /usr/local/bin/barman backup {{ .postgresql.host }}
+      {{ $.Values.barman.backupSchedule }} barman /usr/local/bin/barman backup {{ .scopeName }}
       {{- end }}
       {{- end }}
       # required by cron

charts/barman/templates/configmap-barman.yaml

@@ -19,6 +19,14 @@ data:
 
       barman_user = {{ .Values.barman.barmanUser }}
 
+      {{- if hasKey .Values.barman "postBackupRetryScript" }}
+      post_backup_retry_script = {{ .Values.barman.postBackupRetryScript }}
+      {{- end }}
+
+      {{- if hasKey .Values.barman "preRecoveryRetryScript" }}
+      pre_recovery_retry_script = {{ .Values.barman.preRecoveryRetryScript }}
+      {{- end }}
+
       ; barman_lock_directory = %(barman_home)s
       compression = {{ .Values.barman.compression }}
       configuration_files_directory = /etc/barman/barman.d

charts/barman/templates/configmap-entrypoint.yaml

@@ -0,0 +1,45 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "barman.fullname" . }}-entrypoint
+  labels:
+    {{- include "barman.labels" . | nindent 4 }}
+data:
+  entrypoint.sh: |
+    #!/bin/bash
+
+    echo "Setting ownership/permissions on ${BARMAN_DATA_DIR} and ${BARMAN_LOG_DIR}"
+
+    install -d -m 0700 -o barman -g barman ${BARMAN_DATA_DIR}
+    install -d -m 0755 -o barman -g barman ${BARMAN_LOG_DIR}
+
+    chown -R barman:barman /var/lib/barman/recover
+
+    echo "Checking/Creating replication slot"
+    {{- range .Values.barman.backups }}
+    {{- if hasKey . "createDatabaseSlot" }}
+    {{- if .createDatabaseSlot }}
+    barman replication-status {{ .scopeName }} --minimal --target=wal-streamer | grep barman || barman receive-wal --create-slot {{ .scopeName }}
+    barman replication-status {{ .scopeName }} --minimal --target=wal-streamer | grep barman || barman receive-wal --reset {{ .scopeName }}
+    {{- end }}
+    {{- else }}
+    {{- if $.Values.barman.createDatabaseSlot }}
+    barman replication-status {{ .scopeName }} --minimal --target=wal-streamer | grep barman || barman receive-wal --create-slot {{ .scopeName }}
+    barman replication-status {{ .scopeName }} --minimal --target=wal-streamer | grep barman || barman receive-wal --reset {{ .scopeName }}
+    {{- end }}
+    {{- end }}
+    {{- end }}
+    if [[ -f /home/barman/.ssh/id_rsa ]]; then
+        echo "Setting up Barman private key"
+        chmod 700 ~barman/.ssh
+        chown barman:barman -R ~barman/.ssh
+        chmod 600 ~barman/.ssh/id_rsa
+    fi
+
+    echo "Initializing done"
+
+    # run barman exporter every hour
+    exec /usr/local/bin/barman-exporter -l ${BARMAN_EXPORTER_LISTEN_ADDRESS}:${BARMAN_EXPORTER_LISTEN_PORT} -c ${BARMAN_EXPORTER_CACHE_TIME} &
+    echo "Started Barman exporter on ${BARMAN_EXPORTER_LISTEN_ADDRESS}:${BARMAN_EXPORTER_LISTEN_PORT}"
+
+    exec "$@"

charts/barman/templates/configmap.yaml

@@ -6,3 +6,6 @@ metadata:
     {{- include "barman.labels" . | nindent 4 }}
 data:
   BARMAN_BACKUP_SCHEDULE: {{ .Values.barman.backupSchedule | quote }}
+  {{- range $i, $val := .Values.deployment.additionalENVs }}
+  {{ $i }}: {{ $val }}
+  {{- end }}

charts/barman/templates/deployment.yaml

@@ -73,6 +73,9 @@ spec:
             - mountPath: /etc/cron.d/barman
               name: barman-cron-config
               subPath: barman
+            - mountPath: /entrypoint.sh
+              name: barman-entrypoint
+              subPath: entrypoint.sh
           {{- with .Values.deployment.additionalVolumeMounts }}
             {{- toYaml . | nindent 12 }}
           {{- end  }}
@@ -106,6 +109,10 @@ spec:
         - name: barman-cron-config
           configMap:
             name: {{ include "barman.fullname" . }}-cron-config
+        - name: barman-entrypoint
+          configMap:
+            name: {{ include "barman.fullname" . }}-entrypoint
+            defaultMode: 0775
       {{- with .Values.deployment.additionalVolumes }}
         {{- toYaml . | nindent 8 }}
       {{- end  }}

charts/barman/values.yaml

@@ -30,6 +30,8 @@ deployment:
   extraContainers: {}
   # -- Specify imagePullSecrets for the deployment
   imagePullSecrets: []
+  # -- Specify additional ENVs for the Deployment
+  additionalENVs: {}
 
 service:
   # -- Specify if a Service should be created
@@ -105,10 +107,16 @@ barman:
   databaseSlotName: barman
   # -- Create Database slot
   createDatabaseSlot: true
+  # -- Barman post_backup_retry_script
+  postBackupRetryScript: ""
+  # -- Barman pre_recovery_retry_script
+  preRecoveryRetryScript: ""
 
   backups:
       # -- Barman retention policy
     - retentionPolicy: "RECOVERY WINDOW of 1 MONTH"
+      # -- Postgresql server scope-name
+      scopeName: "pg"
       # -- Barman backup method
       backupMethod: postgres
       # -- Database slot name to be created/used