alanorth/ansible-personal
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61 Commits

Author SHA1 Message Date
Alan Orth
8b77fd7f94 roles/nginx: Templatize SSL parameters using role defaults 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-06-06 00:07:50 +03:00
Alan Orth
fe765f5d3a
roles/nginx: Fix TLS cert loop to use the current item 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-06-01 14:46:06 +03:00
Alan Orth
4b74964963
roles/nginx: Do a shallow clone of WordPress git 
I realized there was no need to do a full clone when I was working
in a Vagrant environment in a coffee shop with slow Internet. ;)

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-06-01 14:32:05 +03:00
Alan Orth
a17cb2a0a0 roles/nginx: Add initial IPv6 support to vhost template 
Still need to add ip6tables rules

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-05-25 11:53:57 +03:00
Alan Orth
3746e798b6
roles/nginx: Use template for nginx repo 
A template is better than ansible's `apt_repository` module because
we can idempotently control the contents of the file based on vari-
ables.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-05-25 00:15:49 +03:00
Alan Orth
7212b87f09
roles/nginx: Adjust HSTS headers for https block of vhost template 
I was only setting it on the PHP block, which is for all dynamic
requests (ie pages from WordPress), but it should also be the same
for all static files not served from that block.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-05-20 15:56:19 +03:00
Alan Orth
caec2440bb
roles/nginx: Fix HSTS header in vhost config 
We always want to add the header, not add a header with value
"always"!

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-05-20 15:54:10 +03:00
Alan Orth
f9ea01ba8f roles/nginx: Use stronger HSTS header 
Include subdomains in the HTTP Strict Transport Security header,
and include the "preload" verb to inform Google we want to be pre-
loaded into the HSTS preload.

See: https://hstspreload.appspot.com/

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-05-13 18:35:26 +03:00
Alan Orth
e675b750c4
roles/nginx: Switch to nginx stable branch 
Remove old mainline repo and add stable repo to get nginx 1.8.0.

See: http://nginx.org/en/CHANGES-1.8

Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-04-23 14:52:22 +03:00
Alan Orth
4602f03bed
roles/nginx: Fix comment in main task 
Signed-off-by: Alan Orth <alan.orth@gmail.com>
 2015-03-25 12:59:10 +03:00
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