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https://github.com/kevinveenbirkenbach/computer-playbook.git
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kevinveenbirkenbachandClaude Opus 5.5
a67dd9b372
The constructor now runs tasks/utils/constructor/preflight.yml before the package install and fails with a named remedy when: the running kernel has no module index on disk or the clock is not synchronised (chrony leap status, else timedatectl, outside containers); / or the docker root is fuller than SIZE_PERCENT_MAXIMUM_DISK_USAGE (90); a docker network contradicts the entity that declares it (name, compose project label, subnet outside its block, overlap with another declared subnet); a declared container lacks or a declared volume carries a foreign entity label; a docker default address pool overlaps the mesh, Tor or a declared subnet; a host process outside docker holds a public port of the deploy; or, in assert mode, a clearnet domain of the deploy does not resolve. A volume without any label passes, since compose adopts it and installs before this change created the Synapse volume with docker run. web-app-discourse declares its launcher-started containers through networks.local.launcher, and web-app-matrix labels a new Synapse volume with its compose project. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
120 lines
4.3 KiB
Python
120 lines
4.3 KiB
Python
import unittest
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from utils.preflight.ports import (
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Listener,
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containerised_pids,
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parse_listeners,
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port_conflicts,
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probed_pids,
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suspect_pids,
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)
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SS_LINES = (
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'tcp LISTEN 0 100 0.0.0.0:25 0.0.0.0:* users:(("master",pid=812,fd=13))',
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'tcp LISTEN 0 4096 [::]:443 [::]:* users:(("docker-proxy",pid=2001,fd=4))',
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'tcp LISTEN 0 511 0.0.0.0:80 0.0.0.0:* users:(("nginx",pid=3001,fd=6),("nginx",pid=3002,fd=6))',
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'udp UNCONN 0 0 127.0.0.53%lo:53 0.0.0.0:* users:(("systemd-resolve",pid=501,fd=13))',
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"udp UNCONN 0 0 0.0.0.0:3478 0.0.0.0:*",
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'tcp LISTEN 0 128 0.0.0.0:22 0.0.0.0:* users:(("sshd",pid=700,fd=3))',
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)
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SS = "\n".join(SS_LINES)
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PORTS = {
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25: ["web-app-mailu (mailu.smtp)"],
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80: ["svc-prx-openresty (openresty.http)"],
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443: ["svc-prx-openresty (openresty.https)"],
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3478: ["web-svc-coturn (coturn.stun_turn)"],
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}
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CGROUP_LINES = (
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"/proc/812/cgroup:0::/system.slice/postfix.service",
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"/proc/3001/cgroup:0::/system.slice/docker-0123456789abcdef0123.scope",
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"/proc/3002/cgroup:0::/docker/0123456789abcdef0123456789abcdef",
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)
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CGROUPS = "\n".join(CGROUP_LINES)
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PROBED = {812, 3001, 3002}
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class TestParseListeners(unittest.TestCase):
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def test_lines_yield_protocol_address_port_and_processes(self):
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listeners = parse_listeners(SS)
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self.assertEqual(
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listeners[1],
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Listener("tcp", "[::]", 443, (("docker-proxy", 2001),)),
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)
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self.assertEqual(listeners[2].processes, (("nginx", 3001), ("nginx", 3002)))
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self.assertEqual(listeners[3].address, "127.0.0.53%lo")
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self.assertEqual(listeners[4].processes, ())
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def test_an_ipv6_address_keeps_its_brackets(self):
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self.assertEqual(parse_listeners(SS)[1].address, "[::]")
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def test_an_unparsable_line_is_rejected(self):
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with self.assertRaises(ValueError):
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parse_listeners("tcp LISTEN 0 1 nonsense")
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class TestSuspectPids(unittest.TestCase):
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def test_only_non_docker_processes_on_deploy_ports_are_suspects(self):
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self.assertEqual(suspect_pids(parse_listeners(SS), PORTS), [812, 3001, 3002])
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class TestContainerisedPids(unittest.TestCase):
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def test_docker_and_podman_cgroups_count_as_containers(self):
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output = (
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CGROUPS + "\n/proc/9/cgroup:0::/machine.slice/libpod-0123456789abcdef.scope"
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)
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self.assertEqual(containerised_pids(output), {3001, 3002, 9})
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def test_the_docker_daemon_unit_is_no_container(self):
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self.assertEqual(
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containerised_pids("/proc/40/cgroup:0::/system.slice/docker.service"), set()
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)
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class TestPortConflicts(unittest.TestCase):
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def test_host_processes_and_ownerless_sockets_conflict(self):
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self.assertEqual(
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port_conflicts(
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parse_listeners(SS), containerised_pids(CGROUPS), PORTS, PROBED
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),
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[
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"master (pid 812) listens on tcp 0.0.0.0:25, which web-app-mailu (mailu.smtp) binds",
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(
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"a socket without a process listens on udp 0.0.0.0:3478, "
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"which web-svc-coturn (coturn.stun_turn) binds"
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),
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],
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)
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def test_a_host_networked_container_and_docker_proxy_pass(self):
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listeners = parse_listeners(SS)[1:3]
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self.assertEqual(
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port_conflicts(listeners, containerised_pids(CGROUPS), PORTS, PROBED), []
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)
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def test_a_process_whose_cgroup_is_unknown_conflicts(self):
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listeners = parse_listeners(SS)[2:3]
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self.assertEqual(
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port_conflicts(listeners, {3001}, PORTS, PROBED),
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[
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(
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"nginx (pid 3002) listens on tcp 0.0.0.0:80, "
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"which svc-prx-openresty (openresty.http) binds"
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)
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],
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)
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def test_a_process_that_exited_before_its_cgroup_was_read_passes(self):
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listeners = parse_listeners(SS)[2:3]
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self.assertEqual(port_conflicts(listeners, {3001}, PORTS, {3001}), [])
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def test_probed_pids_lists_every_pid_with_a_cgroup_line(self):
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self.assertEqual(probed_pids(CGROUPS), PROBED)
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def test_ports_the_deploy_does_not_bind_pass(self):
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listeners = [parse_listeners(SS)[5]]
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self.assertEqual(port_conflicts(listeners, set(), PORTS, PROBED), [])
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if __name__ == "__main__":
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unittest.main()
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