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Ansible Role: paperless_ngx

Installs and configures paperless-ngx EDMS.

• 1. Requirements
  • 1.1. Ansible
  • 1.2. Supported operating systems
• 2. Role Variables
  • 2.1. Role specific variables
  • 2.2. Paperless-ngx configuration variables
• 3. Usage advices
  • 3.1. Updating Paperless-ngx
  • 3.2. Backup/Restore
  • 3.3. Generated password
  • 3.4. Separation of static (~ installation) and dynamic (~ runtime) data
  • 3.5. PostgreSQL usage
• 4. Dependencies
• 5. Example Playbooks
• 6. Contributing
• 7. License

1. Requirements

1.1. Ansible

ansible_version_minimum: "2.12" or newer is required.

The following Ansible collections need to be installed (via ansible-galaxy collection install)

• community.general
• ansible.posix

1.2. Supported operating systems

• Debian (>=11)
• Ubuntu (>=focal)

2. Role Variables

Most configuration variables from paperless-ngx itself are available and accept their respective arguments. Every PAPERLESS_* configuration variable is lowercased and instead prefixed with paperless_ngx_conf_* in defaults/main.yml.

For a full listing including explanations and allowed values, see the current documentation.

The following sections are devided into:

• Role specific variables
• Original paperless-ngx configuration variables

2.1. Role specific variables

Name	Default Value	Description
paperless_ngx_db_type	sqlite	Available db types are sqlite and postgresql. If postgresql is chosen then the other db_ vars must be configured too.
paperless_ngx_dependency_install_tmp_dir	/tmp/	Directory for temporary dependency installation files
paperless_ngx_dir_force_permission_exclude	[]	Which directories should be skipped from permission check/setting. See docs.
paperless_ngx_dir_installation	/opt/paperless-ngx	The directory where paperless-ngx static installation files are written to.
paperless_ngx_dir_python	/opt/python/{{ paperless_ngx_python_version_short }}	The directory where python binaries are compiled to.
paperless_ngx_dir_runtime_data	/var/lib/paperless-ngx	The directory where the runtime data will be stored.
paperless_ngx_dir_virtualenv	"{{ paperless_ngx_dir_installation }}/.venv"	The directory for the needed python venv.
paperless_ngx_jbig2enc_enabled	true	Whether to install and use jbig2enc for OCRmyPDF.
paperless_ngx_jbig2enc_lossy	false	Run jbig2enc in lossy mode or not.
paperless_ngx_jbig2enc_version	0.29	Which version to install.
paperless_ngx_redis_host	localhost	Redis host
paperless_ngx_redis_port	6379	Redis port
paperless_ngx_system_group	paperlessngx	The group to which the system user belongs.
paperless_ngx_system_user	paperlessngx	The user that will execute the services and own the data.
paperless_ngx_system_user_additional_groups	[]	Optionally add the system user to more groups. For example to read TLS certificates that can be read by the group ssl-cert.
paperless_ngx_version	latest	Sofware version to install. Use latest or any specific version in the format '2.0.0'. Only paperless_ngx_version_minimum: '2.0.0' and higher supported.
``

2.2. Paperless-ngx configuration variables

All the upcoming vars correspond with the vars from paperless-ngx docs. The following list of variables is sorted alphabetically to simplify maintenance of this role. In the official documentation, these are assigned to corresponding categories.

To save reading space a few abbreviations are used in the table down below:

• I - Implemented in this role? [Y/N]
• O - Variable is meant to be overridden? [Y/N] If No it should not be altered.
• H - Hint
• V - Version of paperless-ngx that introduced this var.

Name	Default Value	I	O	H	V
paperless_ngx_conf_account_allow_signups	false	Y	Y		2.5
paperless_ngx_conf_account_default_http_protocol	https	Y	Y		2.5
paperless_ngx_conf_account_email_verification	optional	Y	Y		2.6
paperless_ngx_conf_account_session_remember	false	Y	Y		2.7
paperless_ngx_conf_admin_mail	root@localhost	Y	Y
paperless_ngx_conf_admin_password		Y	Y	The superuser password. If not defined by the user, a random password will be generated -> see section below about passwords.
paperless_ngx_conf_admin_user	admin	Y	Y
paperless_ngx_conf_allowed_hosts	"*"	Y	Y
paperless_ngx_conf_app_logo	None	Y	Y		2.4
paperless_ngx_conf_app_title	None	Y	Y		2.4
paperless_ngx_conf_apps	None	Y	Y		2.5
paperless_ngx_conf_audit_log_enabled	false	Y	Y		2.0
paperless_ngx_conf_auto_login_username	""	Y	Y
paperless_ngx_conf_bind_addr	"[::]"	Y	Y
paperless_ngx_conf_consumer_asn_barcode_prefix	ASN	Y	Y		1.12
paperless_ngx_conf_consumer_collate_double_sided_subdir_name	"double-sided"	Y	Y		1.17
paperless_ngx_conf_consumer_collate_double_sided_tiff_support	false	Y	Y		1.17
paperless_ngx_conf_consumer_barcode_dpi	300	Y	Y		1.16
paperless_ngx_conf_consumer_barcode_scanner	"PYZBAR"	Y	Y		1.14
paperless_ngx_conf_consumer_barcode_string	'PATCHT'	Y	Y
paperless_ngx_conf_consumer_barcode_tiff_support	false	Y	Y
paperless_ngx_conf_consumer_barcode_upscale	0.0	Y	Y		1.16
paperless_ngx_conf_consumer_delete_duplicates	false	Y	Y
paperless_ngx_conf_consumer_enable_asn_barcode	false	Y	Y		1.12
paperless_ngx_conf_consumer_enable_barcodes	false	Y	Y
paperless_ngx_conf_consumer_enable_collate_double_sided	false	Y	Y		1.17
paperless_ngx_conf_consumer_enable_tag_barcode	false	Y	Y		2.5
paperless_ngx_conf_consumer_ignore_patterns	[".DS_STORE/", "._", ".stfolder/", ".stversions/", ".localized/*", "desktop.ini"]	Y	Y
paperless_ngx_conf_consumer_inotify_delay	0.5	Y	Y
paperless_ngx_conf_consumer_polling_delay	5	Y	Y
paperless_ngx_conf_consumer_polling_retry_count	5	Y	Y
paperless_ngx_conf_consumer_polling	0	Y	Y
paperless_ngx_conf_consumer_recursive	false	Y	Y
paperless_ngx_conf_consumer_subdirs_as_tags	false	Y	Y
paperless_ngx_conf_consumer_tag_barcode_mapping	'{"TAG:(.*)": "\\g<1>"}'	Y	Y		2.5
paperless_ngx_conf_consumption_dir	"{{ paperless_ngx_dir_runtime_data }}/consumption"	Y	Y
paperless_ngx_conf_convert_binary	convert	Y	Y
paperless_ngx_conf_convert_memory_limit	0	Y	Y
paperless_ngx_conf_convert_tmpdir	""	Y	Y
paperless_ngx_conf_cookie_prefix	""	Y	Y
paperless_ngx_conf_cors_allowed_hosts	http://localhost:8000	Y	Y
paperless_ngx_conf_csrf_trusted_origins		Y	Y
paperless_ngx_conf_data_dir	"{{ paperless_ngx_dir_runtime_data }}/data"	Y	Y
paperless_ngx_conf_date_order	"DMY"	Y	Y
paperless_ngx_conf_db_timeout		Y	Y
paperless_ngx_conf_dbengine		Y	N	Not used by the role
paperless_ngx_conf_dbhost	localhost	Y	Y
paperless_ngx_conf_dbname	paperlessngx	Y	Y
paperless_ngx_conf_dbpass	""	Y	Y	The db password. If not defined by the user, a random password will be generated -> see section below about passwords.
paperless_ngx_conf_dbport	5432	Y	Y
paperless_ngx_conf_dbsslcert	None	Y	Y		1.14
paperless_ngx_conf_dbsslkey	None	Y	Y		1.14
paperless_ngx_conf_dbsslmode	prefer	Y	Y
paperless_ngx_conf_dbsslrootcert	None	Y	Y		1.14
paperless_ngx_conf_dbuser	paperlessngx	Y	Y
paperless_ngx_conf_disable_regular_login	false	Y	Y		2.6
paperless_ngx_conf_email_certificate_location	None	Y	Y		1.17
paperless_ngx_conf_email_from	{{ paperless_ngx_conf_email_host_user }}	Y	Y		2.0
paperless_ngx_conf_email_host	"localhost"	Y	Y		2.0
paperless_ngx_conf_email_host_user	""	Y	Y		2.0
paperless_ngx_conf_email_host_password	""	Y	Y		2.0
paperless_ngx_conf_email_port	25	Y	Y		2.0
paperless_ngx_conf_email_task_cron	"*/10 * * * *"	Y	Y		1.12
paperless_ngx_conf_email_use_ssl	false	Y	Y		2.0
paperless_ngx_conf_email_use_tls	false	Y	Y		2.0
paperless_ngx_conf_empty_trash_delay	30	Y	Y		2.10
paperless_ngx_conf_empty_trash_dir	"{{ paperless_ngx_dir_runtime_data }}/trash"	Y	Y		2.10
paperless_ngx_conf_empty_trash_task_cron	"0 1 * * *"	Y	Y		2.10
paperless_ngx_conf_enable_compression	true	Y	Y		1.13
paperless_ngx_conf_enable_flower	false	Y	Y	Whether to start flower or not. See using flower for more information	1.10
paperless_ngx_conf_enable_http_remote_user	false	Y	Y
paperless_ngx_conf_enable_http_remote_user_api	false	Y	Y		2.5
paperless_ngx_conf_enable_nltk	1	Y	Y		1.11
paperless_ngx_conf_enable_update_check		Y	Y	Will be removed in the future
paperless_ngx_conf_filename_date_order	""	Y	Y
paperless_ngx_conf_filename_format_remove_none	false	Y	Y
paperless_ngx_conf_filename_format	""	Y	Y
paperless_ngx_conf_force_script_name	""	Y	Y
paperless_ngx_conf_gs_binary	gs	Y	Y
paperless_ngx_conf_http_remote_user_header_name	HTTP_REMOTE_USER	Y	Y
paperless_ngx_conf_ignore_dates	""	Y	Y
paperless_ngx_conf_index_task_cron	"0 0 * * *"	Y	Y		1.12
paperless_ngx_conf_logging_dir	"{{ paperless_ngx_dir_runtime_data }}/log"
paperless_ngx_conf_logout_redirect_url		Y	Y
paperless_ngx_conf_logrotate_max_backups	20	Y	Y
paperless_ngx_conf_logrotate_max_size	1024 * 1024	Y	Y
paperless_ngx_conf_max_image_pixels	None	Y	Y		2.6
paperless_ngx_conf_media_root	"{{ paperless_ngx_dir_runtime_data }}/media"	Y	Y
paperless_ngx_conf_model_file	"{{ paperless_ngx_conf_data_dir }}/classification_model.pickle"	Y	Y		2.9
paperless_ngx_conf_nltk_dir	/usr/share/nltk_data	Y	Y		1.11
paperless_ngx_conf_number_of_suggested_dates	3	Y	Y
paperless_ngx_conf_ocr_clean	clean	Y	Y
paperless_ngx_conf_ocr_color_conversion_strategy	"RGB"	Y	Y		2.1
paperless_ngx_conf_ocr_deskew	true	Y	Y
paperless_ngx_conf_ocr_image_dpi	""	Y	Y
paperless_ngx_conf_ocr_language	eng	Y	Y
paperless_ngx_conf_ocr_languages	[eng,deu,fra,ita,spa]	Y	Y
paperless_ngx_conf_ocr_max_image_pixels		Y	Y
paperless_ngx_conf_ocr_mode	skip	Y	Y
paperless_ngx_conf_ocr_output_type	pdfa	Y	Y
paperless_ngx_conf_ocr_pages	0	Y	Y
paperless_ngx_conf_ocr_rotate_pages_threshold	12	Y	Y
paperless_ngx_conf_ocr_rotate_pages	true	Y	Y
paperless_ngx_conf_ocr_skip_archive_file	"never"	Y	Y		1.14
paperless_ngx_conf_ocr_user_args	[optimize=1]	Y	Y
paperless_ngx_conf_port	8000	Y	Y
paperless_ngx_conf_post_consume_script	""	Y	Y
paperless_ngx_conf_pre_consume_script	""	Y	Y
paperless_ngx_conf_proxy_ssl_header	None	Y	Y		1.14
paperless_ngx_conf_redis	redis://{{ paperless_ngx_redis_host }}:{{ paperless_ngx_redis_port }}	Y	N
paperless_ngx_conf_redis_prefix	""	Y	Y		1.17
paperless_ngx_conf_sanity_task_cron	"30 0 * * sun"	Y	Y		1.12
paperless_ngx_conf_secret_key	""	Y	Y	If not defined by the user, a random password will be generated -> see section below about passwords.
paperless_ngx_conf_social_auto_signup	false	Y	Y		2.5
paperless_ngx_conf_socialaccount_allow_signups	true	Y	Y		2.5
paperless_ngx_conf_socialaccount_providers	"{}"	Y	Y		2.5
paperless_ngx_conf_static_url	/static/	Y	Y
paperless_ngx_conf_staticdir	../static	Y	N
paperless_ngx_conf_supervisord_working_dir	None	Y	Y		2.5
paperless_ngx_conf_task_workers	1	Y	Y
paperless_ngx_conf_threads_per_worker	paperless_ngx_conf_task_workers	Y	Y
paperless_ngx_conf_thumbnail_font_name	/usr/share/fonts/liberation/LiberationSerif-Regular.ttf	Y	Y
paperless_ngx_conf_tika_enabled	false	Y	Y
paperless_ngx_conf_tika_endpoint	http://localhost:9998	Y	Y
paperless_ngx_conf_tika_gotenberg_endpoint	http://localhost:3000	Y	Y
paperless_ngx_conf_time_zone	Europe/London	Y	Y
paperless_ngx_conf_train_task_cron	"5 */1 * * *"	Y	Y		1.12
paperless_ngx_conf_trusted_proxies	""	Y	Y		1.14
paperless_ngx_conf_url	http://localhost:8000	Y	Y
paperless_ngx_conf_use_x_forward_host	False	Y	Y		1.14
paperless_ngx_conf_use_x_forward_port	False	Y	Y		1.14
paperless_ngx_conf_usermap_gid		Y	Y	System users gid
paperless_ngx_conf_usermap_uid		Y	Y	System users id
paperless_ngx_conf_webserver_workers	1	Y	Y
paperless_ngx_conf_worker_timeout	1800	Y	Y

3. Usage advices

3.1. Updating Paperless-ngx

If you installed Paperless-ngx with the help of this role and you want to update to a newer version than all you have to do is to run this role again (if you chose latest as the version identifier). If you specified a specific version to install than all you need to do is to change this value to a newer one and run the role again.

This role will not update anything else than Paperless-ngx. So updates for the operating system and depended packages need to be handled seperately.

PLEASE THINK ABOUT BACKUPS before you upgrade.

3.2. Backup/Restore

Please be aware that this role does not offer any mechanism of backup or restore. This is intention. To seperate concerns this role is only focused towards 'deployments' of the software artifacts and its configuration. An example of a working backup strategy can be found here: Link to example backup strategy

3.3. Generated password

The role uses Ansible's password lookup:

• If a password is generated by the role, ansible stores it locally in pngx_instances/{{ incentory_hostname }}/ (relative to the working directory)
• if the file already exist, it reuse its content
• see the ansible password lookup documentation for more info

3.4. Separation of static (~ installation) and dynamic (~ runtime) data

This role checks that you do not set one of the data dirs (like consumption etc.) as a subdirectory of the installation path. For making my life easier this role deletes the installation folder and creates a complete new one when upgrading. This is fresh and clean. Also this way you are kept from unwanted deletions of your data during upgrades.

3.5. PostgreSQL usage

If you want to use Paperless-ngx together with PostgreSQL a running instance of PostgreSQL is required. This role does not automatically install such a database instance for you. However, here is you can read an example how to set up such an instance from scretch: Link to example playbook

4. Dependencies

No dependencies

5. Example Playbooks

minimal_runnable_playbook.yml:

- hosts: all
    roles:
        - { role: paperless_ngx.paperless_ngx }
    vars:
        var1:
        var2:
        ...

6. Contributing

We encourage you to contribute to this role! Please check out the contributing guide for guidelines about how to proceed.

7. License

MIT