Update to 2021-12-01 19:13

roles/n8n/templates/env.j2

@@ -0,0 +1,11 @@
+N8N_CONFIG_FILES={{ n8n_root_dir }}/etc/n8n.json
+N8N_USER_FOLDER={{ n8n_root_dir }}/data
+WEBHOOK_TUNNEL_URL={{ n8n_public_url }}
+VUE_APP_URL_BASE_API={{ n8n_public_url }}
+N8N_ENCRYPTION_KEY={{ n8n_secret_key | quote }}
+EXECUTIONS_DATA_PRUNE=true
+EXECUTIONS_DATA_MAX_AGE={{ n8n_data_max_age }}
+N8N_CUSTOM_EXTENSIONS={{ n8n_root_dir }}/.n8n/custom
+{% for env in n8n_env_var.keys() | list %}
+{{ env }}={{ n8n_env_var[env] }}
+{% endfor %}

roles/n8n/templates/n8n.json.j2

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+{{ n8n_config | to_nice_json(indent=4) }}

roles/n8n/templates/n8n.service.j2

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+[Unit]
+Description=n8n workflow automation daemon
+After=syslog.target network.target mariadb.service
+
+[Service]
+Type=simple
+User={{ n8n_user }}
+Group={{ n8n_user }}
+EnvironmentFile={{ n8n_root_dir }}/etc/env
+ExecStart={{ n8n_root_dir }}/app/node_modules/n8n/bin/n8n
+PrivateTmp=yes
+{% if n8n_protect_system %}
+ProtectSystem=full
+NoNewPrivileges=yes
+ProtectHome=yes
+{% endif %}
+MemoryLimit={{ n8n_mem_limit }}M
+Environment=NODE_OPTIONS="--max-old-space-size={{ n8n_mem_limit }}"
+Restart=on-failure
+StartLimitInterval=0
+RestartSec=30
+
+[Install]
+WantedBy=multi-user.target

roles/n8n/templates/post-backup.sh.j2

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+#!/bin/bash -e
+
+rm -f {{ n8n_root_dir }}/backup/*.sql.zst

roles/n8n/templates/pre-backup.sh.j2

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -eo pipefail
+
+/usr/bin/mysqldump \
+{% if n8n_db_server not in ['localhost','127.0.0.1'] %}
+  --user={{ n8n_db_user | quote }} \
+  --password={{ n8n_db_pass | quote }} \
+  --host={{ n8n_db_server | quote }} \
+  --port={{ n8n_db_port | quote }} \
+{% endif %}
+  --quick --single-transaction \
+  --add-drop-table {{ n8n_db_name | quote }} | zstd -c > {{ n8n_root_dir }}/backup/{{ n8n_db_name }}.sql.zst