Mercurial > prosody-modules

annotate mod_aws_profile/mod_aws_profile.lua @ 5668:ecfd7aece33b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_measure_modules: Report module statuses via OpenMetrics Someone in the chat asked about a health check endpoint, which reminded me of mod_http_status, which provides access to module statuses with full details. After that, this idea came about, which seems natural. As noted in the README, it could be used to monitor that critical modules are in fact loaded correctly. As more modules use the status API, the more useful this module and mod_http_status becomes.
author Kim Alvefur <zash@zash.se>
date Fri, 06 Oct 2023 18:34:39 +0200
parents 1d719d4ef18f
children 616c0459aca7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3698
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local http = require "net.http";
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 local json = require "util.json";
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 local parse_timestamp = require "util.datetime".parse;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 module:set_global();
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 local current_credentials = module:shared("/*/aws_profile/credentials");
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 local function get_role_credentials(role_name, cb)
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 http.request("http://169.254.169.254/latest/meta-data/iam/security-credentials/"..role_name, nil, function (credentials_json)
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 local credentials = credentials_json and json.decode(credentials_json);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 if not credentials or not (credentials.AccessKeyId and credentials.SecretAccessKey) then
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 module:log("warn", "Failed to fetch credentials for %q", role_name);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 cb(nil);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 return;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 local expiry = parse_timestamp(credentials.Expiration);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 local ttl = os.difftime(expiry, os.time());
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 cb({
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 access_key = credentials.AccessKeyId;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 secret_key = credentials.SecretAccessKey;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 ttl = ttl;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 expiry = expiry;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 });
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 end);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 local function get_credentials(cb)
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 http.request("http://169.254.169.254/latest/meta-data/iam/security-credentials", nil, function (role_name)
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 role_name = role_name and role_name:match("%S+");
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 if not role_name then
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 module:log("warn", "Unable to discover role name");
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 cb(nil);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 return;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 get_role_credentials(role_name, cb);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 end);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 function refresh_credentials(force)
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 if not force and current_credentials.expiry and current_credentials.expiry - os.time() > 300 then
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 return;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 get_credentials(function (credentials)
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 if not credentials then
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 module:log("warn", "Failed to refresh credentials!");
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 return;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 current_credentials.access_key = credentials.access_key;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 current_credentials.secret_key = credentials.secret_key;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 current_credentials.expiry = credentials.expiry;
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 module:timer(credentials.ttl or 240, refresh_credentials);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 module:fire_event("aws_profile/credentials-refreshed", current_credentials);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 end);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55 end
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 function module.load()
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 refresh_credentials(true);
1d719d4ef18f mod_aws_profile: New module for role-based access to AWS APIs
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 end