| 1 | //go:build linux && rootrunner |
| 2 | |
| 3 | package host |
| 4 | |
| 5 | import ( |
| 6 | "flag" |
| 7 | "fmt" |
| 8 | "github.com/carlosframework/platform/internal/instanceexec" |
| 9 | "github.com/carlosframework/platform/internal/version" |
| 10 | "os" |
| 11 | "os/exec" |
| 12 | "os/user" |
| 13 | "strconv" |
| 14 | "testing" |
| 15 | ) |
| 16 | |
| 17 | // The test binary must take the same private registry entrypoint as carlos. |
| 18 | func TestMain(m *testing.M) { |
| 19 | // The installed carlos-dbread@ unit runs this binary as |
| 20 | // /opt/carlos/carlos system db-worker (dbreads_rootrunner_linux_test.go). |
| 21 | if len(os.Args) == 3 && os.Args[1] == "system" && os.Args[2] == "db-worker" { |
| 22 | dbreadsTestWorker() |
| 23 | return |
| 24 | } |
| 25 | // A tenant inside the installed tenant unit, reaching for the worker. |
| 26 | if len(os.Args) == 2 && os.Args[1] == "dbread-tenant-witness" { |
| 27 | dbreadsTenantWitness() |
| 28 | return |
| 29 | } |
| 30 | // The agent half of the db-read root-runner tests, run as carlos. |
| 31 | if os.Getenv("DBREAD_RUNNER_PAYLOAD") != "" { |
| 32 | flag.Set("test.run", "^TestRootDBReadPayload$") |
| 33 | flag.Set("test.v", "false") |
| 34 | flag.Set("test.timeout", "5m") |
| 35 | os.Exit(m.Run()) |
| 36 | } |
| 37 | if os.Getenv("PLAN14_LIFECYCLE_GUARD") == "1" && len(os.Args) > 1 { |
| 38 | if os.Args[1] == "system" && len(os.Args) > 2 { |
| 39 | switch os.Args[2] { |
| 40 | case "guard-arm": |
| 41 | version.Build = "v2.0.0" |
| 42 | RunSystemGuardArm(os.Args[3:]) |
| 43 | return |
| 44 | case "guard-exec": |
| 45 | RunSystemGuardExec(os.Args[3:]) |
| 46 | return |
| 47 | case "apply": |
| 48 | RunSystemApply(os.Args[3:]) |
| 49 | return |
| 50 | } |
| 51 | } |
| 52 | if len(os.Args) == 2 && os.Args[1] == "agent" && os.Getenv("PLAN14_LIFECYCLE_AGENT") == "1" { |
| 53 | os.Setenv("CARLOS_S3_ENDPOINT", os.Getenv("PLAN14_LIFECYCLE_DATA_ENDPOINT")) |
| 54 | flag.Set("test.run", "^TestPlan14LifecycleEndToEndRootRunnerPayload$") |
| 55 | flag.Set("test.v", "true") |
| 56 | flag.Set("test.timeout", "4m") |
| 57 | os.Exit(m.Run()) |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | if os.Getenv("PLAN14_CONSOLE") == "1" { |
| 62 | plan14ConsolePayload() |
| 63 | return |
| 64 | } |
| 65 | if os.Getenv("PLAN14_TENANT_SOCKET") != "" { |
| 66 | plan14InstalledTenant() |
| 67 | return |
| 68 | } |
| 69 | if len(os.Args) > 1 { |
| 70 | switch os.Args[1] { |
| 71 | case "instance-exec": |
| 72 | instanceexec.RunExec(os.Args[2:]) |
| 73 | return |
| 74 | case "instance-exit": |
| 75 | instanceexec.RunExit(os.Args[2:]) |
| 76 | return |
| 77 | case "plan14-tenant": |
| 78 | plan14InstalledTenant() |
| 79 | return |
| 80 | } |
| 81 | } |
| 82 | if len(os.Args) > 1 && os.Args[1] == registryChildCommand { |
| 83 | if err := RunRegistryChild(os.Args[2:]); err != nil { |
| 84 | fmt.Fprintln(os.Stderr, err) |
| 85 | os.Exit(1) |
| 86 | } |
| 87 | os.Exit(0) |
| 88 | } |
| 89 | os.Exit(m.Run()) |
| 90 | } |
| 91 | |
| 92 | func generationRunnerRegistryUser(t *testing.T) (int, int) { |
| 93 | t.Helper() |
| 94 | if os.Geteuid() != 0 { |
| 95 | t.Fatal("designated runner must execute as root") |
| 96 | } |
| 97 | service, err := user.Lookup(serviceUser) |
| 98 | if err != nil { |
| 99 | if _, ok := err.(user.UnknownUserError); !ok { |
| 100 | t.Fatal(err) |
| 101 | } |
| 102 | if _, err := user.LookupGroup(serviceUser); err == nil { |
| 103 | t.Fatal("service group exists without its user") |
| 104 | } else if _, ok := err.(user.UnknownGroupError); !ok { |
| 105 | t.Fatal(err) |
| 106 | } |
| 107 | if out, err := exec.Command("useradd", "--system", "--user-group", "--no-create-home", "--shell", "/usr/sbin/nologin", serviceUser).CombinedOutput(); err != nil { |
| 108 | t.Fatalf("create runner service user: %v %s", err, out) |
| 109 | } |
| 110 | t.Cleanup(func() { |
| 111 | if out, err := exec.Command("userdel", serviceUser).CombinedOutput(); err != nil { |
| 112 | t.Errorf("remove runner service user: %v %s", err, out) |
| 113 | return |
| 114 | } |
| 115 | if _, err := user.LookupGroup(serviceUser); err == nil { |
| 116 | if out, err := exec.Command("groupdel", serviceUser).CombinedOutput(); err != nil { |
| 117 | t.Errorf("remove runner service group: %v %s", err, out) |
| 118 | } |
| 119 | } |
| 120 | }) |
| 121 | service, err = user.Lookup(serviceUser) |
| 122 | if err != nil { |
| 123 | t.Fatal(err) |
| 124 | } |
| 125 | } |
| 126 | uid, err := strconv.Atoi(service.Uid) |
| 127 | if err != nil || uid <= 0 { |
| 128 | t.Fatal("runner service UID must be non-root", err) |
| 129 | } |
| 130 | gid, err := strconv.Atoi(service.Gid) |
| 131 | if err != nil || gid < 0 { |
| 132 | t.Fatal("invalid runner service GID", err) |
| 133 | } |
| 134 | return uid, gid |
| 135 | } |
| 136 | |
amadan