postfixadmin-docker/README.md

PostfixAdmin

This is an alternative project to build a container image for PostfixAdmin.

The main goal of this alternative image is to support a kubernetes deployment via helm. Furthermore, the container image support configuring via environment variables.

To deploy PostfixAdmin via helm checkout the repository on artifacthub.io for more details.

Supported environment variables

This list is an overview over some important environment variables. The environment variables are composed on the key of the PHP configuration with the prefix POSTFIXADMIN_. You can take an example configuration from the upstream project.

name	default
POSTFIXADMIN_ADMIN_EMAIL
POSTFIXADMIN_ADMIN_SMTP_PASSWORD
POSTFIXADMIN_ADMIN_NAME
POSTFIXADMIN_DATABASE_TYPE	sqlite
POSTFIXADMIN_DATABASE_USER
POSTFIXADMIN_DATABASE_PASSWORD
POSTFIXADMIN_DATABASE_HOST
POSTFIXADMIN_DATABASE_PORT
POSTFIXADMIN_DATABASE_NAME	/var/tmp/postfixadmin.db
POSTFIXADMIN_DEFAULT_LANGUAGE	en
POSTFIXADMIN_DATABASE_USE_SSL
POSTFIXADMIN_DATABASE_KEY
POSTFIXADMIN_DATABASE_CERT
POSTFIXADMIN_DATABASE_CA
POSTFIXADMIN_DATABASE_PREFIX
POSTFIXADMIN_ENCRYPT	md5crypt
POSTFIXADMIN_SMTP_SERVER	localhost
POSTFIXADMIN_SMTP_PORT	25
POSTFIXADMIN_SMTP_CLIENT
POSTFIXADMIN_SHOW_FOOTER_TEXT	YES
POSTFIXADMIN_FOOTER_TEXT	Return to change-this-to-your.domain.tld
POSTFIXADMIN_FOOTER_LINK	http://change-this-to-your.domain.tld
POSTFIXADMIN_FETCHMAIL	YES

POSTFIXADMIN_ADMIN_EMAIL

Define the email address of an admin via POSTFIXADMIN_ADMIN_EMAIL to send emails or broadcast messages in his name instead of the email address of the logged in admin, which wants to send an email or broadcast message about the PostfixAdmin interface. By default is the environment variable not defined. The value of the environment will be configured as the following config setting: $CONF['admin_email'].

POSTFIXADMIN_ADMIN_SMTP_PASSWORD

Define the smtp password via POSTFIXADMIN_ADMIN_SMTP_PASSWORD of the admin which should be used to send emails or broadcast messages about the PostfixAdmin interface. By default is the environment variable not defined. The value of the environment will be configured as the following config setting: $CONF['admin_smtp_password'].

POSTFIXADMIN_ADMIN_NAME

Define the name of the admin via POSTFIXADMIN_ADMIN_NAME which should be used to send emails or broadcast messages about the PostfixAdmin interface. By default is the environment variable not defined. The value of the environment will be configured as the following config setting: $CONF['admin_name'].

POSTFIXADMIN_DATABASE_TYPE

PostfixAdmin support currently sqlite, postgres and mysql/mariadb. About the envrionment variable POSTFIXADMIN_DATABASE_TYPE can the backend type defined. The default value is sqlite.

database type	value
mysql/mariadb	mysqli
postgres	pgsql
sqlite	sqlite

POSTFIXADMIN_DATABASE_USER

The environment variable POSTFIXADMIN_DATABASE_USER is undefined and only required if the database backend is not sqlite. The value of the environment will be configured as the following config setting: $CONF['database_user'].

POSTFIXADMIN_DATABASE_PASSWORD

The environment variable POSTFIXADMIN_DATABASE_PASSWORD is undefined and only required if the database backend is not sqlite. The value of the environment will be configured as the following config setting: $CONF['database_password'].

POSTFIXADMIN_DATABASE_HOST

The environment variable POSTFIXADMIN_DATABASE_HOST is undefined and only required if the database backend is not sqlite. The value of the environment will be configured as the following config setting: $CONF['database_host'].

POSTFIXADMIN_DATABASE_PORT

The environment variable POSTFIXADMIN_DATABASE_PORT will automatically defined with default values when instead of sqlite an other database backend has been selected. The value of the environment will be configured as the following config setting: $CONF['database_port'].

database type	default port
mysqli/mariadb	3306
postgres	5432

POSTFIXADMIN_DATABASE_NAME

The environment variable POSTFIXADMIN_DATABASE_NAME is defined by default with the value /var/tmp/postfixadmin.db. This is the path where the sqlite database is stored. If pgsql or mysqli is defined instead of sqlite as database backend type, can the environment variable used to define the database name. The value of the environment will be configured as the following config setting: $CONF['database_name'].

POSTFIXADMIN_DATABASE_USE_SSL

Encrypt a database connection to an external database like postgres, mariadb or mysqli via SSL when POSTFIXADMIN_DATABASE_USE_SSL=true. Additionally should be the other SSL environment variables defined to establish successfully a SSL encrypted connection. The value of the environment will be configured as the following config setting: $CONF['database_use_ssl'].

POSTFIXADMIN_DATABASE_SSL_KEY

Via POSTFIXADMIN_DATABASE_SSL_KEY can be the path to the private key defined which should be used to encrypt the database connection via SSL. By default is this environment variable undefined. The value of the environment will be configured as the following config setting: $CONF['database_ssl_key'].

POSTFIXADMIN_DATABASE_SSL_CERT

Via POSTFIXADMIN_DATABASE_SSL_CERT can be the path to the certificate defined which should be used to encrypt the database connection via SSL. By default is this environment variable undefined. The value of the environment will be configured as the following config setting: $CONF['database_ssl_cert'].

POSTFIXADMIN_DATABASE_SSL_CA

Via POSTFIXADMIN_DATABASE_SSL_CA can be the path to the root certificate of the certificate authority defined which should be trusted to encrypt the database connection via SSL. By default is this environment variable undefined. The value of the environment will be configured as the following config setting: $CONF['database_ssl_ca'].

POSTFIXADMIN_DATABASE_PREFIX

It make much sense to use a prefix name for all PostfixAdmin related tables, when the tables, views and so on should be stored into a shared schema like public. About the environment variable POSTFIXADMIN_DATABASE_PREFIX can such a prefix defined. By default is this variable undefined, but when not it results in the config setting $CONF['database_prefix'].

POSTFIXADMIN_DEFAULT_LANGUAGE

Default language of PostfixAdmin. Checkout the official repository under ./languages to get a list of all supported languages.

POSTFIXADMIN_ENCRYPT

Via POSTFIXADMIN_ENCRYPT can be the algorithm specified to encrypt passwords of users. The algorithm md5crypt is defined as default. Other possible values are documented here.

POSTFIXADMIN_SETUP_PASSWORD

To login into the setup.php page is the setup password required. This can be defined via the variable POSTFIXADMIN_SETUP_PASSWORD. The password will be hashed via bcrypt and used as value for the setting $CONF['setup_password'] in the config file config.local.php.

POSTFIXADMIN_SMTP_CLIENT

Hostname (FQDN) of the server hosting PostfixAdmin used in the HELO when sending emails from PostfixAdmin. The value of the environment will be configured as the following config setting and is empty by default: $CONF['smtp_client'].

POSTFIXADMIN_SMTP_SERVER

Hostname (FQDN) of your mail server. The default value is localhost. The value of the environment will be configured as the following config setting: $CONF['smtp_server'].

POSTFIXADMIN_SMTP_PORT

Port of your mail server. The default value is 25. The value of the environment will be configured as the following config setting: $CONF['smtp_port'].

POSTFIXADMIN_SHOW_FOOTER_TEXT

Enable or disable via YES or NO the footer text displayed on all sites. Use POSTFIXADMIN_FOOTER_TEXT and POSTFIX_FOOTER_LINK to customize the text.

POSTFIXADMIN_FETCHMAIL

Enable or disable via YES or NO the fetchmail tab. It has nothing todo with the fetchmail cron job.