jschoubben
4566c5c9aa
Review of the ADR 0105 build (hq ADR 0105). Four things it got wrong and one path it lacked: - A predecessor spoke's tunnel names one peer, the hub, routed the whole range; recording refused it and the whole enrolment failed. Range-routed peers are skipped now — only the hub's peers are ever carried. - The range and the carried peers were conditions on the node being adopted, so converging the hub would have renumbered the mesh and dropped the peers still reaching it. They are facts of the tunnel record now, mode aside; the takeover alone is declared to an adopted node. Converging the hub is refused while a carried peer has not enrolled, naming it. - A push composed a takeover for a hub whose address or endpoint disagreed with the tunnel, which would have the host stop the found interface and raise the mesh's where no peer listens. The graph refuses to compose it, naming both and the placement that fixes it. - The host's account said taken or not; "found down and the mesh's not up" read as not taken. Three states now, and an account on every takeover. - A hub that enrolled before this feature holds a key of its own, and re-enrolling would rotate every key the mesh sealed credentials to. A node now rekeys in a report, signed with its identity key over the key it leaves, the key it takes and the tunnel; the mesh verifies against the live key, refuses a stale or foreign proof, records key and tunnel, and moves a hub to the tunnel's address. `overlay show` names the path for a hub that found no tunnel. Also: a carried IPv6 peer is routed /128, and identity.ForTest exists so the link can be tested against a real identity store.
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
package identity
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import (
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"context"
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"fmt"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/jackc/pgx/v5"
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"github.com/novox/mesh-controller/internal/store"
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)
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// ForTest is a fresh, migrated identity store in a database of its own, dropped when the test
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// ends. Exported for the same reason inventory.ForTest is: the check that a node's signed word
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// is verified against the key the mesh recorded lives beside the link, and a second copy of this
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// would be a second thing to keep true. It takes a *testing.T, so nothing that is not a test can
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// call it.
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func ForTest(t *testing.T) *Identity {
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t.Helper()
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admin := os.Getenv("MESH_TEST_POSTGRES")
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if admin == "" {
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t.Skip("no MESH_TEST_POSTGRES; run `make check` to raise one")
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}
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name := fmt.Sprintf("ident_%d_%s", time.Now().UnixNano()%1_000_000,
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strings.ToLower(strings.NewReplacer("/", "", "-", "").Replace(t.Name())))
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if len(name) > 60 {
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name = name[:60]
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}
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conn, err := pgx.Connect(t.Context(), admin)
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if err != nil {
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t.Fatalf("cannot reach the test PostgreSQL: %v", err)
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}
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if _, err := conn.Exec(t.Context(), "create database "+name); err != nil {
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t.Fatalf("cannot create %s: %v", name, err)
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}
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conn.Close(t.Context())
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cut := strings.LastIndex(admin, "/")
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t.Setenv(store.Variable(Name), admin[:cut]+"/"+name+"?sslmode=disable")
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ident, err := Open(t.Context())
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if err != nil {
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t.Fatal(err)
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}
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t.Cleanup(func() {
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ident.Close()
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c, err := pgx.Connect(context.Background(), admin)
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if err != nil {
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return
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}
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defer c.Close(context.Background())
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_, _ = c.Exec(context.Background(), "drop database if exists "+name+" with (force)")
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})
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if err := ident.Ready(t.Context(), 20*time.Second); err != nil {
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t.Fatal(err)
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}
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migrations, err := Migrations()
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if err != nil {
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t.Fatal(err)
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}
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if _, err := ident.store.Migrate(t.Context(), migrations); err != nil {
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t.Fatal(err)
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}
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return ident
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}
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