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114 lines
4.6 KiB
ReStructuredText
114 lines
4.6 KiB
ReStructuredText
Docker Compose setup
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====================
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Prepare the environment
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-----------------------
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Mailu will store all of its persistent data in a path of your choice
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(``/mailu`` by default) simply create the directory and move there:
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.. code-block:: bash
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mkdir /mailu
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cd /mailu
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Create the configuration files
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------------------------------
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Docker Compose configuration is stored in a file named ``docker-compose.yml``.
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Additionally, Mailu relies on a ``mailu.env`` file for various settings.
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Both files can be generated by the `mailu setup utility`_. The setup utility
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is mostly self-explanatory, with some more additional information in this section.
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.. _`mailu setup utility`: https://setup.mailu.io
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.. _tls_flavor:
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TLS certificates
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````````````````
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Sets the ``TLS_FLAVOR`` to one of the following
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values:
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- ``cert`` is the default and requires certificates to be setup manually;
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- ``letsencrypt`` will use the *Letsencrypt!* CA to generate automatic ceriticates;
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- ``mail`` is similar to ``cert`` except that TLS will only be served for
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emails (IMAP and SMTP), not HTTP (use it behind reverse proxies);
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- ``mail-letsencrypt`` is similar to ``letsencrypt`` except that TLS will only be served for
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emails (IMAP and SMTP), not HTTP (use it behind reverse proxies);
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- ``notls`` will disable TLS, this is not recommended except for testing.
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.. note::
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When using *Letsencrypt!* you have to make sure that the DNS ``A`` and ``AAAA`` records for the
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all hostnames mentioned in the ``HOSTNAMES`` variable match with the ip adresses of you server.
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Or else certificate generation will fail! See also: :ref:`dns_setup`.
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Bind address
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````````````
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The bind addresses need to match the public IP addresses assigned to your server. For IPv6 you will need the ``<global>`` scope address.
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You can find those addresses by running the following:
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.. code-block:: bash
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[root@mailu ~]$ ifconfig eth0
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eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
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inet 125.189.138.127 netmask 255.255.255.0 broadcast 5.189.138.255
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inet6 fd21:aab2:717c:cc5a::1 prefixlen 64 scopeid 0x0<global>
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inet6 fe2f:2a73:43a8:7a1b::1 prefixlen 64 scopeid 0x20<link>
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ether 00:50:56:3c:b2:23 txqueuelen 1000 (Ethernet)
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RX packets 174866612 bytes 127773819607 (118.9 GiB)
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RX errors 0 dropped 0 overruns 0 frame 0
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TX packets 19905110 bytes 2191519656 (2.0 GiB)
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TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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If the address is not configured directly (NAT) on any of the network interfaces or if
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you would simply like the server to listen on all interfaces, use ``0.0.0.0`` and ``::``. Note that running is this mode is not supported and can lead to `issues`_.
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.. _issues: https://github.com/Mailu/Mailu/issues/641
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Review configuration variables
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------------------------------
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After downloading the files, open ``mailu.env`` and review the variable settings.
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Make sure to read the comments in the file and instructions from the :ref:`common_cfg` page.
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Finish setting up TLS
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---------------------
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Mailu relies heavily on TLS and must have a key pair and a certificate
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available, at least for the hostname configured in the ``mailu.env`` file.
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If you set ``TLS_FLAVOR`` to ``cert`` or ``mail`` then you must create a ``certs`` directory
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in your root path and setup a key-certificate pair there:
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- ``cert.pem`` contains the certificate (override with ``TLS_CERT_FILENAME``),
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- ``key.pem`` contains the key pair (override with ``TLS_KEYPAIR_FILENAME``).
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Start Mailu
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-----------
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You may now start Mailu. Move the to the Mailu directory and run:
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.. code-block:: bash
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docker-compose up -d
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Finally, you need an admin user account.
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You can have the system create it automatically:
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use the environment variables ``INITIAL_ACCOUNT*`` as described in :ref:`admin_account`
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You should set ``INITIAL_ADMIN_MODE`` also to either ``update`` or ``ifmissing``. Leaving it with the default value could cause errors when restarting the system.
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Else, if you don't go with the automatic way, you need to manually create the admin account now:
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.. code-block:: bash
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docker-compose exec admin flask mailu admin me example.net password
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This will create a user named ``me@example.net`` with password ``password`` and administration privileges. Connect to the Web admin interface and change the password to a strong one.
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.. note:: It is vitally important that either a user with the same email as ``POSTMASTER`` in your ``mailu.env`` exists, or you remember to create an alias with this name after you log in. All kinds of strange errors will occur as a result of not doing so!
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