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#! /usr/bin/python | |
# Sanity check that consul-template is writing the services in Consul to the | |
# nginx config file. | |
import requests | |
HOST = '10.1.1.13' | |
CONSUL_PORT = 8500 | |
NGINX_CONFIG_PATH = '/etc/nginx/sites-enabled/consul_template.conf' | |
def read_file_lines(path): | |
with open(path) as f: | |
return f.read().split('\n') | |
def find_in_file_lines(lines, keyword): | |
for line in lines: | |
if keyword in line: | |
return line | |
return None | |
def is_consular_service(tags): | |
return any([tag.startswith('consular-') for tag in tags]) | |
def get_consul_services(host, port): | |
response = requests.get('http://%s:%s/v1/catalog/services' % (host, port)) | |
services = response.json() | |
return [name for name, tags in services.items() | |
if is_consular_service(tags)] | |
lines = read_file_lines(NGINX_CONFIG_PATH) | |
print('Read nginx config file with %d lines' % len(lines)) | |
print('Fetching Consul services...') | |
consul = get_consul_services(HOST, CONSUL_PORT) | |
print('Found %d Consul services started by Consular' % len(consul)) | |
missing = 0 | |
skipped = 0 | |
for service in consul: | |
line = find_in_file_lines(lines, service) | |
if line is None: | |
missing += 1 | |
print('Service "%s" was not found in the nginx config' % service) | |
elif line.startswith('# Skipped'): | |
skipped += 1 | |
print('Service "%s" was skipped in the nginx config' % service) | |
print('%d services in Consul not found in the nginx config' % missing) | |
print('%d services in Consul skipped in the nginx config' % skipped) |
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