alanorth/ansible-personal
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51 Commits

Author SHA1 Message Date
Alan Orth
bb55506464
roles/nginx: Use Linode DNS servers for OCSP resolvers 
I didn't realize Linode had DNS resolvers, but they are much closer
than anything else (obviously).

Here is OpenDNS:

    # mtr --report 208.67.222.222
    Start: Sun Mar 22 15:31:50 2015
    HOST: mjanja                    Loss%   Snt   Last   Avg  Best  Wrst StDev
      1.|-- router1-lon.linode.com     0.0%    10    0.5   0.9   0.5   3.4   0.7
      2.|-- 212.111.33.233             0.0%    10    1.4   1.4   1.2   1.9   0.0
      3.|-- 217.20.44.194              0.0%    10    0.7   0.8   0.7   1.2   0.0
      4.|-- lonap.rtr1.lon.opendns.co  0.0%    10    1.2   1.1   0.9   1.4   0.0
      5.|-- resolver1.opendns.com      0.0%    10    1.0   0.9   0.8   1.0   0.0

And here is Linode's:

    # mtr --report 109.74.192.20
    Start: Sun Mar 22 15:32:30 2015
    HOST: mjanja                    Loss%   Snt   Last   Avg  Best  Wrst StDev
      1.|-- router2-lon.linode.com     0.0%    10    0.5   0.6   0.5   0.8   0.0
      2.|-- resolver1.london.linode.c  0.0%    10    0.4   0.4   0.3   0.8   0.0

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-22 19:06:33 +03:00
Alan Orth
ae8937eb96 roles/nginx: Just enable OCSP 
I was attempting to make the config easier to use in test environments
where the key is self-signed, but meh, I rarely do that and I think
this logic doesn't actually work.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-22 19:05:50 +03:00
Alan Orth
9ce7ac72f9
roles/nginx: Add extra-security headers to PHP block 
nginx inherits headers from higher-level blocks UNLESS we also set
headers in the current block. In this case the FastCGI cache header
was being set, so we weren't getting the extra-security ones.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-19 09:32:06 +03:00
Alan Orth
934db06887 roles/nginx: Add HTTP Strict Transport Security headers to PHP block 
nginx blocks inherit headers set in blocks above them UNLESS the
current level also sets headers[0]. This was causing PHP requests
to not have STS headers because of the FastCGI cache header which
is set in that block.

[0] http://nginx.org/en/docs/http/ngx_http_headers_module.html

Fixes GitHub #7.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-19 09:30:26 +03:00
Alan Orth
04e453df51 Revert "roles/nginx: Correct HSTS header in https template" 
This reverts commit 5c7404d228.

'always' is legal in nginx >= 1.7.5:

If the always parameter is specified (1.7.5), the header field will be added regardless of the response code.

See: http://nginx.org/en/docs/http/ngx_http_headers_module.html
 2015-03-18 18:33:19 +03:00
Alan Orth
5c7404d228
roles/nginx: Correct HSTS header in https template 
Apparently the "always" syntax isn't used anymore (ever?), not sure
where I got it from but this definitely causes HSTS to not work.

See: https://mozilla.github.io/server-side-tls/ssl-config-generator/
See: https://raymii.org/s/tutorials/HTTP_Strict_Transport_Security_for_Apache_NGINX_and_Lighttpd.html

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-18 10:20:55 +03:00
Alan Orth
6422cb7507
roles/nginx: Switch nginx OCSP resolver to OpenDNS 
We don't need to give Google EVERYTHING.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-18 09:06:22 +03:00
Alan Orth
942f45834f
roles/nginx: Use a more descriptive variable name for bypassing the proxy_cache 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-11 13:51:48 +03:00
Alan Orth
3dcc5e1411
roles/nginx: Move some common fastcgi settings out of vhost template 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-10 11:59:43 +03:00
Alan Orth
2b02d94254
roles/nginx: Don't cache 404 errors in munin config 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-09 13:32:09 +03:00
Alan Orth
41f055306f
roles/nginx: Re-order $request_method in fastcgi_cache_key 
Everyone else on the Internet has it this way, so why not.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-09 13:18:02 +03:00
Alan Orth
53d2c85bf0 roles/nginx: Adjust fastcgi_cache_valid 
Only cache 200, 301, and 302 requests!

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-09 10:23:48 +03:00
Alan Orth
066bf6fa85
roles/nginx: Set gzip_comp_level to 6 
Seems to be the sweet spot, as gzip itself defaults to this.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-09 10:21:34 +03:00
Alan Orth
bb92bd080d
roles/nginx: Add $request_method to nginx fastcgi_cache_key 
nginx is caching HEAD requests, then when users come along and do
a GET request they get an HTTP 200 with no request body. It seems
setting fastcgi_request_methods to GET doesn't stop nginx from caching
HEADs, so for now just add the $request_method to the key.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-09 10:19:34 +03:00
Alan Orth
1174db87bc
roles/nginx: Add task to clone WordPress git 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-02-26 17:39:17 +03:00
Alan Orth
d08a37526f
roles/nginx: Don't send OCSP responses for hosts using self-signed certs 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-02-26 17:38:30 +03:00
Alan Orth
cd65475d0d
roles/nginx: Add protection for PHP scripts in uploads directory 
By the way, :? starts a non-capturing group (ie, don't save the
back references).

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-02-26 17:05:50 +03:00
Alan Orth
29f7a76545
roles/nginx: Update location regex for PHP scripts 
Just use the same one as the Nginx wiki and some other resources.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-02-26 16:40:38 +03:00
Alan Orth
b93da27fde
roles/nginx: Create fastcgi cache dir 
Or else nginx doesn't start.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-02-19 18:49:39 +03:00
Alan Orth
0b90bad6a9
roles/nginx: Add fastcgi caching 
Bypasses caching for logged in users (right now only for sessions
where the "wordpress_logged_in" cookie is set. Doubles the trans-
actions per second as measured by siege:

    $ siege -d1 -t1M -c50 https://mjanja.ch

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-02-10 23:04:28 +03:00
Alan Orth
4ea152bf51
roles/nginx: Add HTTP headers for web application security 
See: https://github.com/h5bp/server-configs-nginx/blob/master/h5bp/directive-only/extra-security.conf
See: https://www.owasp.org/index.php/List_of_useful_HTTP_headers

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-01-24 13:05:42 +03:00
Alan Orth
0dc4d3f147
roles/nginx: Add a second OCSP stapling responder 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-01-24 12:44:27 +03:00
Alan Orth
7457ac3b93
roles/nginx: Always set HSTS header 
nginx 1.7.5 allows us to always set HTTP headers:

See: http://mailman.nginx.org/pipermail/nginx-announce/2014/000145.html

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-01-24 12:40:48 +03:00
Alan Orth
c3bc6d949d
roles/nginx: Add nginx rewrites for Yoast WordPress SEO plugin 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-01-23 12:26:24 +03:00
Alan Orth
6ccfdb99fa roles/nginx: Enable OCSP stapling 
Reduces round trip time for clients. Note: I am using a certificate
chain in the `ssl_certificate' directive, so as I understand it, I
don't need to use an explicit trusted intermediate + root CA cert
with the `ssl_trusted_certificate' option. See the nginx docs for
more[0]. Addresses GitHub Issue #5.

Seems to be working, test with:

    $ openssl s_client -connect mjanja.ch:443 -servername mjanja.ch -tls1 -tlsextdebug -status

Look for "OCSP Response" with "Cert Status: good".

[0] http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_stapling

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-06 23:28:05 +03:00
Alan Orth
f23f0713d2
roles/nginx: Enable SPDY header compression 
Recommended by Ilya Grigorik to be set to 6.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-06 22:40:39 +03:00
Alan Orth
15603ba9e8
roles/nginx: Disable SSL session tickets 
Session tickets increase performance, but decrease security, so
let's just turn them off.  See the following posts:

- https://timtaubert.de/blog/2014/11/the-sad-state-of-server-side-tls-session-resumption-implementations/
- https://www.imperialviolet.org/2013/06/27/botchingpfs.html
- https://github.com/igrigorik/istlsfastyet.com/blob/master/nginx/includes/ssl.conf

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-06 22:37:00 +03:00
Alan Orth
23d76a535f
roles/nginx: Set nginx SSL session timeout to 24 hours 
Default is 5 minutes, but it seems like unless you're a high-traff-
ic site, there's no need to expire sessions so quickly.  Also, the
istlsfastyet.com configs are using 24 hours, so surely we can.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-06 22:19:12 +03:00
Alan Orth
d8cd31049b
roles/nginx: Format and add comments to nginx https config 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-06 22:17:52 +03:00
Alan Orth
be6c76a2af roles/nginx: Set nginx SSL buffer size to 1400 
istlsfastyet.com recommends setting the buffer size to 1400 so it
can fit into a single MTU.  nginx default is 16k!

http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_buffer_size

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-06 22:16:07 +03:00
Alan Orth
d04293a664
roles/nginx: Set nginx state to 'latest' in apt 
This way we can upgrade nginx simply by running the nginx tags.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-12-02 18:48:11 +03:00
Alan Orth
956fbefc1a
roles/nginx: Switch to nginx mainline (1.7) 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-11-07 01:02:44 +03:00
Alan Orth
3f5634110a
roles/nginx: Add comment about try_files for serving static files from disk 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-11-07 00:41:07 +03:00
Alan Orth
c870044584
roles/nginx: Adjust Cache-Control headers 
Use "public" with "max-age" instead of Expires, as "max-age" is always
preferred if it's present.  Note: setting "public" doesn't make the
resource "more cacheable", but it is just more explicit.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-11-07 00:29:53 +03:00
Alan Orth
08a920d0cb Revert "roles/nginx: Ingenius use of YAML hashes to derive TLS key from another file" 
This reverts commit 59b9bd70b8.

Might not be so ingenious.  Can't get this to work anymore...
 2014-10-27 21:16:43 +03:00
Alan Orth
59b9bd70b8 roles/nginx: Ingenius use of YAML hashes to derive TLS key from another file 
This is kinda crazy, but makes the host_vars much easier to read.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-11 15:42:44 +03:00
Alan Orth
42b893b2a7
roles/nginx: Add expires to static files 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-10 11:05:42 +03:00
Alan Orth
81a98596e3
Downgrade TLS configuration to Mozilla's "intermediate" spec 
From looking at the list of clients who would be allowed to connect
when using the "modern" spec, I think I'd be doing more harm than
good to use that config right now...

https://www.ssllabs.com/ssltest/analyze.html?d=alaninkenya.org
https://wiki.mozilla.org/Security/Server_Side_TLS

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-09 21:09:18 +03:00
Alan Orth
d06ddf8a81
roles/nginx: Update TLS vhost task for Ansible > 1.7.1 
Seems there is some YAML sublety that causes this syntax to insert
double spaces on the destination file... using native YAML hashes
are a workaround, see GitHub issues:

https://github.com/ansible/ansible/issues/9067
https://github.com/ansible/ansible/issues/9172

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-09 20:57:24 +03:00
Alan Orth
ad8a704470
Update TLS configuration to Mozilla's "modern" spec 
Details, see:

- https://jve.linuxwall.info/blog/index.php?post/2014/10/09/Automated-configuration-analysis-for-Mozilla-s-TLS-guidelines
- https://wiki.mozilla.org/Security/Server_Side_TLS

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-09 20:56:08 +03:00
Alan Orth
ad90f7f0fb
roles/nginx: Use HSTS for https vhosts 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-06 10:46:04 +03:00
Alan Orth
fd9c6f31cb
roles/nginx: Add index to munin vhost 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-10-05 15:47:14 +03:00
Alan Orth
e6ffdf8652
roles/nginx: Update nginx https stuff 
- re-organize tls vhost configuration
- copy TLS cert from host_vars directly to file

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-09-13 23:16:54 +03:00
Alan Orth
2156f8b07d
roles/nginx: Tweaks for vhosts with WordPress 
My WordPress blogs have a /wordpress subdirectory in the document
root, but I don't serve from the /wordpress URI.

Technically, all we need is the tweaks to the try_files:
    - `?args` passes query strings to php5-fpm
    - removing 404 from the vhost's try_files so we don't return 404
    when the requested file doesn't exist (obviously not all request
    URI's in WordPress are actual files on the disk)

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-09-07 22:51:34 +03:00
Alan Orth
162197ad25
roles/nginx: Re-work vhost template to support HTTPS 
Assumes you have a TLS cert for one domain, but not the others, ie:

    http://blah.com \
    http://blah.net  -> https://blah.io
    http://blah.org /

Otherwise, without https, it creates a vhost with all domain names.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-09-06 21:32:37 +03:00
Alan Orth
fafd475f6b
roles/nginx: Add index to vhost config 
Without this, all requests to directory URIs throw 403 errors due
to directory listings not being allowed.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-08-28 12:27:24 +03:00
Alan Orth
0b8e0c38bf
roles/nginx: Per-vhost logs 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-08-27 20:26:12 +03:00
Alan Orth
5bbec6716c
roles/nginx: Use template to configure nginx vhosts 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-08-27 20:03:34 +03:00
Alan Orth
75a705ac87
roles/nginx: Add defaults for nginx role 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-08-27 20:02:29 +03:00
Alan Orth
ff95a34605
roles/nginx: Add vim modeline to main.yml 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2014-08-27 20:00:42 +03:00