Commit Graph

388 Commits

Author SHA1 Message Date
329edaee87
roles/common: Rate limit SSH connections in firewalld
I think 5 connections per minute is more than enough. Any over this
and it will be logged to the systemd journal as a warning.

See: https://www.win.tue.nl/~vincenth/ssh_rate_limit_firewalld.htm
See: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/configuring_complex_firewall_rules_with_the_rich-language_syntax
2019-01-28 14:09:18 +02:00
bbab45ae6f
Adjust ansible_managed to use comment filter
We don't need to comment the ansible_managed block manually.
2019-01-10 12:50:54 +02:00
9921a40c19
roles/common: Update comment 2018-12-20 10:31:18 +02:00
91356ab364
roles/common: Disable Canonical spam in MOTD 2018-12-20 10:27:52 +02:00
49cfbc4c47
roles/common: Add missing systemd-journald config
I apparently forgot to add this when I committed the systemd-journald
changes a few weeks ago.
2018-12-20 09:59:13 +02:00
96f14bdda7
roles/common: Remove blank line 2018-12-20 09:57:47 +02:00
6aed22b633
roles/common: Use one task to remove Ubuntu packages
I had previously been removing some packages for security reasons,
then removing others because they were annoying, and yet *others*
because they were annoying on newer Ubuntus only. It is easier to
just unify these tasks and remove them all in one go.

On older Ubuntus where some packages don't exist the task will just
succeed because the package is absent anyways.
2018-12-20 09:54:46 +02:00
a15faabe32
roles/common: Update apt cache only if it's older than 1 hour 2018-12-20 09:40:10 +02:00
aeaa96b753
roles/common: Remove s3cmd from Ubuntu packages
I'm using tarsnap for backups so I don't need Amazon S3 stuff.
2018-12-20 09:38:51 +02:00
67172138a1
roles/common: Fix typo 2018-12-20 09:38:10 +02:00
400926821c
roles/common: Only update apt index if cache is older than 1 hour 2018-12-20 09:37:44 +02:00
281689e506
roles/common: Use an Ansible fact for Ubuntu packages 2018-12-20 09:36:43 +02:00
46bbb06527
roles/common: Remove more annoying packages on Ubuntu
Ubuntu 16.04 and up install a bunch of their technologies that I'm
not using, like lxc, lxd, and snaps.
2018-12-20 09:31:58 +02:00
691deb4fa7
roles/common: Use a persistent systemd journal
The default systemd journal configuration on CentOS 7 and Ubuntu
16.04 does not keep journal logs for multiple boots. This limits
the usefulness of the journal entirely (for example, try to see
sshd logs from even two or three months ago!).

Changing the storage to "persistent" makes systemd keep the logs
on disk in /var/log/journal for up to 2% of the partition size.
2018-12-07 23:46:18 +02:00
da615fb368
roles/mariadb: Update my.cnf template
Sync from upstream's provided my.cnf.
2018-07-29 16:43:56 +03:00
b47f66512d
roles/mariadb: Use MariaDB 10.3
Also disables the fetching of i386 packages because the mirror does
not appear to have them anymore (and I wasn't using them anyways).
2018-07-29 16:23:24 +03:00
963bf65099
roles/common: Limit number of SSH authentication attempts
The default in later OpenSSH is 6, which seems too high. If you can't
get your password correct after 3 tries then I think you need help.

Eventually I'd like an easy way to enable blocking of repeated login
attempts at the firewall level. I think it's possible in firewalld.
2018-07-23 13:14:54 +03:00
f22b6af273
roles/common: Change mode of SSH public key 2018-05-30 08:32:11 -07:00
37a88f676b
roles/common: Add new SSH public key for aorth 2018-05-30 07:48:38 -07:00
131420be17
roles/common: Add task to copy tarsnaprc
One less thing to do manually after server provisioning, and there is
nothing sensitive in here anyways.
2018-05-20 12:51:02 +03:00
c29d37c159
roles/mariadb: Use German mirror 2018-05-20 12:05:35 +03:00
314a33d37c
Use official MariaDB builds for Ubuntu bionic
We had been using the Ubuntu 17.10 "artful" builds for Ubuntu 18.04
"bionic" but there are now official bionic builds.
2018-05-19 23:12:35 +03:00
2837de4e3f
roles/php-fpm: Update defaults
From latest PHP 7.2 on Ubuntu 18.04's php.ini-production.
2018-05-15 00:00:27 +03:00
70abcb2051
roles/php-fpm: Import new php.ini-production
From latest Ubuntu 18.04 PHP 7.2 package.
2018-05-14 23:58:45 +03:00
1a9033dece
roles/common: Use bionic tarsnap builds on Ubuntu 18.04
Tarsnap finally published builds for Ubuntu 18.04 "bionic" so we don't
need to use the 17.10 "artful" ones anymore.
2018-05-09 00:05:42 +03:00
42fcd933a8
roles/nginx: Fix Jinja2 logic in apt sources template 2018-05-08 23:53:47 +03:00
3f0c45d504
roles/nginx: Force amd64 builds on apt sources
Avoids the following error in apt:

Skipping acquire of configured file 'nginx/binary-i386/Packages' as repository 'https://nginx.org/packages/ubuntu bionic InRelease' doesn't support architecture 'i386'
2018-05-08 23:41:25 +03:00
f5fbc4b8f1
roles/nginx: Use bionic builds on Ubuntu 18.04
NGINX finally published builds for Ubuntu 18.04 "bionic" so we don't
need to use the 17.10 "artful" ones anymore.
2018-05-08 23:39:59 +03:00
0a39051a95
roles/nginx: Allow custom resolvers for TLS stapling
Allows to specify custom DNS resolvers for TLS stapling, with a default
of Cloudflare's public DNS servers.
2018-04-30 18:04:17 +03:00
bda95b6a1c
roles/nginx: Default to Cloudflare public DNS for TLS stapling
No need to give Google even more data or free advertising by using
this as the default! In practice I always use the DNS servers from
the VPS provider anyways.
2018-04-30 17:51:59 +03:00
7aed78016c
roles/php-fpm: Use set_fact to set packages
Instead of looping over a list of items to install, we can actually
just give a list directly to the apt module. This allows the module
to install all packages in one transaction, which is faster as well
as slightly safer for some dependency resolution scenarios.
2018-04-29 16:10:53 +03:00
45517a1421
roles/php-fpm: Remove "packages" tag
This tag is no longer reachable after switching to the new dynamic
includes in Ansible 2.4 and 2.5. Anyways, I've been questioning my
decision to add the "packages" tag to any task that uses the apt
module.
2018-04-29 16:04:47 +03:00
434fe59a63
roles/php-fpm: Use blocks to tag children of dynamic tasks
When using dynamic includes, child tasks do not inherit tags from their
parents. You must tag the parent and each child task separately, or use
a block to group children and then apply a tag to a block.

See: https://docs.ansible.com/ansible/devel/porting_guides/porting_guide_2.5.html
2018-04-29 16:04:03 +03:00
6208d1518c
roles/nginx: Use set_fact to set certbot dependencies
Instead of looping over a list of items to install, we can actually
just give a list directly to the apt module. This allows the module
to install all packages in one transaction, which is faster as well
as slightly safer for some dependency resolution scenarios.
2018-04-26 19:48:05 +03:00
baa5890d6d
roles/nginx: Add name to Let's Encrypt task
All tasks should have names, even if they are just including other
tasks.
2018-04-26 17:12:22 +03:00
fa5db39674
roles/nginx: Move WordPress tasks to separate file
Because of the shift from static imports to dynamic includes these
tags will never be reached unless they have their own task that is
tagged at the top-level (dynamic includes don't pass their tags to
their children).
2018-04-26 17:09:09 +03:00
0f512a5bf7
roles/common: Use blocks to tag children of dynamic tasks
When using dynamic includes, child tasks do not inherit tags from their
parents. You must tag the parent and each child task separately, or use
a block to group children and then apply a tag to a block.

See: https://docs.ansible.com/ansible/devel/porting_guides/porting_guide_2.5.html
2018-04-26 16:58:35 +03:00
7d950ade99
roles: Remove unreachable "packages" tags
After reörganizing for dynamic includes these tags will never be reached
because the children of dynamic includes do not inherit tags from their
parents as they did with static imports.
2018-04-26 16:31:06 +03:00
1738507ee9
roles/nginx: Use dynamic includes for Let's Encrypt
As of Ansible 2.4 and 2.5 the behavior for importing tasks has changed
to introduce the notion of static imports and dynamic includes. If the
tasks doing the import is using variable interpolation or conditionals
then the task should be dynamic. This results in quicker playbook runs
due to less importing of unneccessary tasks.

One side effect of this is that child tasks of dynamic includes do not
inherit their parents' tags so you must tag them explicitly or a block.

Also, I had to move the letsencrypt tasks to the main task file so the
tags were available (due to dynamic tasks not inheriting tags).
2018-04-26 11:00:47 +03:00
2da7f39bb4
roles/nginx: Use dynamic includes for tasks
As of Ansible 2.4 and 2.5 the behavior for importing tasks has changed
to introduce the notion of static imports and dynamic includes. If the
tasks doing the import is using variable interpolation or conditionals
then the task should be dynamic. This results in quicker playbook runs
due to less importing of unneccessary tasks.

One side effect of this is that child tasks of dynamic includes do not
inherit their parents' tags so you must tag them explicitly or a block.
2018-04-26 10:45:01 +03:00
c608331e3c
roles/nginx: Rename Let's Encrypt dependency lists 2018-04-26 08:26:58 +03:00
e50f413f5e
roles/nginx: Use dynamic include_tasks for Let's Encrypt
Use dynamic includes instead of static imports when you are running
tasks conditionally or using variable interpolation. The down side
is that you need to then tag the parent task as well as all child
tasks, as tags only apply to children of statically imported tasks.
2018-04-25 20:03:32 +03:00
ebda406de3
roles/nginx: Separate Debian 9 "stretch" Let's Encrypt deps
Instead of iterating over fifteen packages with a loop that does fifteen
separate apt transactions, it is better to give the apt module a list so
it can install them all in one transaction. This is both quicker and te-
chnically more safe for dependency resolution.
2018-04-25 20:02:42 +03:00
f427350feb
roles/nginx: Separate Ubuntu 16.04 "Xenial" Let's Encrypt deps
Instead of iterating over fifteen packages with a loop that does fifteen
separate apt transactions, it is better to give the apt module a list so
it can install them all in one transaction. This is both quicker and te-
chnically more safe for dependency resolution.
2018-04-25 20:01:39 +03:00
12711afac9
roles/nginx: Add dependencies for certbot on Ubuntu 18.04
Taken from running the Let's Encrypt certbot-auto client on a freshly
installed Ubuntu 18.04 system.
2018-04-25 19:40:33 +03:00
ab27caf877
roles/common: Use dynamic include_tasks for firewall
Use dynamic includes instead of static imports when you are running
tasks conditionally or using variable interpolation. The down side
is that you need to then tag the parent task as well as all child
tasks, as tags only apply to children of statically imported tasks.
2018-04-25 18:58:31 +03:00
a044fd2f55
roles/common: Add missing vim modelines 2018-04-25 18:55:22 +03:00
8b660dcfbe
roles/common: Use dynamic include_tasks for packages
Basically, when using conditionals or variables in your tasks you should
use include_tasks instead of import_tasks. The down side is that you now
need to tag all included tasks individually or with a block, unlike when
using static imports (tags are applied to all imported child tasks).

I would actually like to reduce this task to a single one that uses the
host's ansible_distribution variable, but Ansible 2.5.1 currently gives
the following error: ansible_distribution is undefined.
2018-04-25 18:46:28 +03:00
9445541f51
roles/common: Always use security.ubuntu.com
Vanilla Ubuntu (and Debian actually) defaults to using the official
mirror for security updates rather than country or regional mirrors.

Also, for what it's worth, Ubuntu mirrors didn't always sync these
security archives. I'd prefer to stay closer to vanilla Ubuntu but
also it kinda makes sense to get security updates from the official
source than a mirror (in case of delay or errors).
2018-04-25 18:09:11 +03:00
832573acc5
roles/common: Remove comments from sources.list
I want this file to be more like what comes from the stock Ubuntu.
2018-04-25 18:07:55 +03:00