refactor how the nginx config file is assembled

This doesn't change anything. Just preparation for the next commit.
This commit is contained in:
Joshua Tauberer 2015-06-04 11:45:08 +00:00
parent c9add7a8bf
commit 1d09e2406b
1 changed files with 31 additions and 24 deletions

View File

@ -23,8 +23,7 @@ def get_web_domains(env):
# IP address than this box. Remove those domains from our list.
domains |= (get_mail_domains(env) - get_domains_with_a_records(env))
# Sort the list. Put PRIMARY_HOSTNAME first so it becomes the
# default server (nginx's default_server).
# Sort the list so the nginx conf gets written in a stable order.
domains = sort_domains(domains, env)
return domains
@ -41,11 +40,17 @@ def do_web_update(env):
# Build an nginx configuration file.
nginx_conf = open(os.path.join(os.path.dirname(__file__), "../conf/nginx-top.conf")).read()
# Add configuration for each web domain.
# Load the templates.
template1 = open(os.path.join(os.path.dirname(__file__), "../conf/nginx.conf")).read()
template2 = open(os.path.join(os.path.dirname(__file__), "../conf/nginx-primaryonly.conf")).read()
# Add the PRIMARY_HOST configuration first so it becomes nginx's default server.
nginx_conf += make_domain_config(env['PRIMARY_HOSTNAME'], [template1, template2], env)
# Add configuration all other web domains.
for domain in get_web_domains(env):
nginx_conf += make_domain_config(domain, template1, template2, env)
if domain == env['PRIMARY_HOSTNAME']: continue # handled above
nginx_conf += make_domain_config(domain, [template1], env)
# Did the file change? If not, don't bother writing & restarting nginx.
nginx_conf_fn = "/etc/nginx/conf.d/local.conf"
@ -66,11 +71,10 @@ def do_web_update(env):
return "web updated\n"
def make_domain_config(domain, template, template_for_primaryhost, env):
# How will we configure this domain.
def make_domain_config(domain, templates, env):
# GET SOME VARIABLES
# Where will its root directory be for static files?
root = get_web_root(domain, env)
# What private key and SSL certificate will we use for this domain?
@ -80,18 +84,9 @@ def make_domain_config(domain, template, template_for_primaryhost, env):
# available. Make a self-signed one now if one doesn't exist.
ensure_ssl_certificate_exists(domain, ssl_key, ssl_certificate, env)
# Put pieces together.
nginx_conf_parts = re.split("\s*# ADDITIONAL DIRECTIVES HERE\s*", template)
nginx_conf = nginx_conf_parts[0] + "\n"
if domain == env['PRIMARY_HOSTNAME']:
nginx_conf += template_for_primaryhost + "\n"
# ADDITIONAL DIRECTIVES.
# Replace substitution strings in the template & return.
nginx_conf = nginx_conf.replace("$STORAGE_ROOT", env['STORAGE_ROOT'])
nginx_conf = nginx_conf.replace("$HOSTNAME", domain)
nginx_conf = nginx_conf.replace("$ROOT", root)
nginx_conf = nginx_conf.replace("$SSL_KEY", ssl_key)
nginx_conf = nginx_conf.replace("$SSL_CERTIFICATE", ssl_certificate)
nginx_conf_extra = ""
# Because the certificate may change, we should recognize this so we
# can trigger an nginx update.
@ -104,7 +99,7 @@ def make_domain_config(domain, template, template_for_primaryhost, env):
finally:
f.close()
return sha1.hexdigest()
nginx_conf += "# ssl files sha1: %s / %s\n" % (hashfile(ssl_key), hashfile(ssl_certificate))
nginx_conf_extra += "# ssl files sha1: %s / %s\n" % (hashfile(ssl_key), hashfile(ssl_certificate))
# Add in any user customizations in YAML format.
nginx_conf_custom_fn = os.path.join(env["STORAGE_ROOT"], "www/custom.yaml")
@ -113,17 +108,29 @@ def make_domain_config(domain, template, template_for_primaryhost, env):
if domain in yaml:
yaml = yaml[domain]
for path, url in yaml.get("proxies", {}).items():
nginx_conf += "\tlocation %s {\n\t\tproxy_pass %s;\n\t}\n" % (path, url)
nginx_conf_extra += "\tlocation %s {\n\t\tproxy_pass %s;\n\t}\n" % (path, url)
for path, url in yaml.get("redirects", {}).items():
nginx_conf += "\trewrite %s %s permanent;\n" % (path, url)
nginx_conf_extra += "\trewrite %s %s permanent;\n" % (path, url)
# Add in any user customizations in the includes/ folder.
nginx_conf_custom_include = os.path.join(env["STORAGE_ROOT"], "www", safe_domain_name(domain) + ".conf")
if os.path.exists(nginx_conf_custom_include):
nginx_conf += "\tinclude %s;\n" % (nginx_conf_custom_include)
nginx_conf_extra += "\tinclude %s;\n" % (nginx_conf_custom_include)
# PUT IT ALL TOGETHER
# Ending.
nginx_conf += nginx_conf_parts[1]
# Combine the pieces. Iteratively place each template into the "# ADDITIONAL DIRECTIVES HERE" placeholder
# of the previous template.
nginx_conf = "# ADDITIONAL DIRECTIVES HERE\n"
for t in templates + [nginx_conf_extra]:
nginx_conf = re.sub("[ \t]*# ADDITIONAL DIRECTIVES HERE *\n", t, nginx_conf)
# Replace substitution strings in the template & return.
nginx_conf = nginx_conf.replace("$STORAGE_ROOT", env['STORAGE_ROOT'])
nginx_conf = nginx_conf.replace("$HOSTNAME", domain)
nginx_conf = nginx_conf.replace("$ROOT", root)
nginx_conf = nginx_conf.replace("$SSL_KEY", ssl_key)
nginx_conf = nginx_conf.replace("$SSL_CERTIFICATE", ssl_certificate)
nginx_conf = nginx_conf.replace("$REDIRECT_DOMAIN", re.sub(r"^www\.", "", domain)) # for default www redirects to parent domain
return nginx_conf