# verifies: # 1. Traffic Server is able to start # 2. Traffic Server spawns traffic_crashlog upon startup # 3. Traffic Server proxies HTTP requests according to URL remapping rules # in 'services.trafficserver.remap' # 4. Traffic Server applies per-map settings specified with the conf_remap # plugin # 5. Traffic Server caches HTTP responses # 6. Traffic Server processes HTTP PUSH requests # 7. Traffic Server can load the healthchecks plugin # 8. Traffic Server logs HTTP traffic as configured # # uses: # - bin/traffic_manager # - bin/traffic_server # - bin/traffic_crashlog # - bin/traffic_cache_tool # - bin/traffic_ctl # - bin/traffic_logcat # - bin/traffic_logstats # - bin/tspush import ./make-test-python.nix ({ pkgs, ... }: { name = "trafficserver"; meta = with pkgs.lib.maintainers; { maintainers = [ midchildan ]; }; nodes = { ats = { pkgs, lib, config, ... }: let user = config.users.users.trafficserver.name; group = config.users.groups.trafficserver.name; healthchecks = pkgs.writeText "healthchecks.conf" '' /status /tmp/ats.status text/plain 200 500 ''; in { services.trafficserver.enable = true; services.trafficserver.records = { proxy.config.http.server_ports = "80 80:ipv6"; proxy.config.hostdb.host_file.path = "/etc/hosts"; proxy.config.log.max_space_mb_headroom = 0; proxy.config.http.push_method_enabled = 1; # check that cache storage is usable before accepting traffic proxy.config.http.wait_for_cache = 2; }; services.trafficserver.plugins = [ { path = "healthchecks.so"; arg = toString healthchecks; } { path = "xdebug.so"; } ]; services.trafficserver.remap = '' map http://httpbin.test http://httpbin map http://pristine-host-hdr.test http://httpbin \ @plugin=conf_remap.so \ @pparam=proxy.config.url_remap.pristine_host_hdr=1 map http://ats/tspush http://httpbin/cache \ @plugin=conf_remap.so \ @pparam=proxy.config.http.cache.required_headers=0 ''; services.trafficserver.storage = '' /dev/vdb volume=1 ''; networking.firewall.allowedTCPPorts = [ 80 ]; virtualisation.emptyDiskImages = [ 256 ]; services.udev.extraRules = '' KERNEL=="vdb", OWNER="${user}", GROUP="${group}" ''; }; httpbin = { pkgs, lib, ... }: let python = pkgs.python3.withPackages (ps: with ps; [ httpbin gunicorn gevent ]); in { systemd.services.httpbin = { enable = true; after = [ "network.target" ]; wantedBy = [ "multi-user.target" ]; serviceConfig = { ExecStart = "${python}/bin/gunicorn -b 0.0.0.0:80 httpbin:app -k gevent"; }; }; networking.firewall.allowedTCPPorts = [ 80 ]; }; client = { pkgs, lib, ... }: { environment.systemPackages = with pkgs; [ curl ]; }; }; testScript = { nodes, ... }: let sampleFile = pkgs.writeText "sample.txt" '' It's the season of White Album. ''; in '' import json import re ats.wait_for_unit("trafficserver") ats.wait_for_open_port(80) httpbin.wait_for_unit("httpbin") httpbin.wait_for_open_port(80) with subtest("Traffic Server is running"): out = ats.succeed("traffic_ctl server status") assert out.strip() == "Proxy -- on" with subtest("traffic_crashlog is running"): ats.succeed("pgrep -f traffic_crashlog") with subtest("basic remapping works"): out = client.succeed("curl -vv -H 'Host: httpbin.test' http://ats/headers") assert json.loads(out)["headers"]["Host"] == "httpbin" with subtest("conf_remap plugin works"): out = client.succeed( "curl -vv -H 'Host: pristine-host-hdr.test' http://ats/headers" ) assert json.loads(out)["headers"]["Host"] == "pristine-host-hdr.test" with subtest("caching works"): out = client.succeed( "curl -vv -D - -H 'Host: httpbin.test' -H 'X-Debug: X-Cache' http://ats/cache/60 -o /dev/null" ) assert "X-Cache: miss" in out out = client.succeed( "curl -vv -D - -H 'Host: httpbin.test' -H 'X-Debug: X-Cache' http://ats/cache/60 -o /dev/null" ) assert "X-Cache: hit-fresh" in out with subtest("pushing to cache works"): url = "http://ats/tspush" ats.succeed(f"echo {url} > /tmp/urls.txt") out = ats.succeed( f"tspush -f '${sampleFile}' -u {url}" ) assert "HTTP/1.0 201 Created" in out, "cache push failed" out = ats.succeed( "traffic_cache_tool --spans /etc/trafficserver/storage.config find --input /tmp/urls.txt" ) assert "Span: /dev/vdb" in out, "cache not stored on disk" out = client.succeed(f"curl {url}").strip() expected = ( open("${sampleFile}").read().strip() ) assert out == expected, "cache content mismatch" with subtest("healthcheck plugin works"): out = client.succeed("curl -vv http://ats/status -o /dev/null -w '%{http_code}'") assert out.strip() == "500" ats.succeed("touch /tmp/ats.status") out = client.succeed("curl -vv http://ats/status -o /dev/null -w '%{http_code}'") assert out.strip() == "200" with subtest("logging works"): access_log_path = "/var/log/trafficserver/squid.blog" ats.wait_for_file(access_log_path) out = ats.succeed(f"traffic_logcat {access_log_path}").split("\n")[0] expected = "^\S+ \S+ \S+ TCP_MISS/200 \S+ GET http://httpbin/headers - DIRECT/httpbin application/json$" assert re.fullmatch(expected, out) is not None, "no matching logs" out = json.loads(ats.succeed(f"traffic_logstats -jf {access_log_path}")) assert out["total"]["error.total"]["req"] == "0", "unexpected log stat" ''; })