open-nomad/nomad/variables_endpoint_test.go

885 lines
24 KiB
Go

package nomad
import (
"encoding/json"
"fmt"
"math/rand"
"strings"
"testing"
"time"
msgpackrpc "github.com/hashicorp/net-rpc-msgpackrpc"
"github.com/shoenig/test/must"
"github.com/hashicorp/nomad/acl"
"github.com/hashicorp/nomad/ci"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/testutil"
)
func TestVariablesEndpoint_auth(t *testing.T) {
ci.Parallel(t)
srv, _, shutdown := TestACLServer(t, func(c *Config) {
c.NumSchedulers = 0 // Prevent automatic dequeue
})
defer shutdown()
testutil.WaitForLeader(t, srv.RPC)
const ns = "nondefault-namespace"
alloc1 := mock.Alloc()
alloc1.ClientStatus = structs.AllocClientStatusFailed
alloc1.Job.Namespace = ns
alloc1.Namespace = ns
jobID := alloc1.JobID
// create an alloc that will have no access to variables we create
alloc2 := mock.Alloc()
alloc2.Job.TaskGroups[0].Name = "other-no-permissions"
alloc2.TaskGroup = "other-no-permissions"
alloc2.ClientStatus = structs.AllocClientStatusRunning
alloc2.Job.Namespace = ns
alloc2.Namespace = ns
alloc3 := mock.Alloc()
alloc3.ClientStatus = structs.AllocClientStatusRunning
alloc3.Job.Namespace = ns
alloc3.Namespace = ns
alloc3.Job.ParentID = jobID
alloc4 := mock.Alloc()
alloc4.ClientStatus = structs.AllocClientStatusRunning
alloc4.Job.Namespace = ns
alloc4.Namespace = ns
store := srv.fsm.State()
must.NoError(t, store.UpsertNamespaces(1000, []*structs.Namespace{{Name: ns}}))
must.NoError(t, store.UpsertAllocs(
structs.MsgTypeTestSetup, 1001, []*structs.Allocation{alloc1, alloc2, alloc3, alloc4}))
claims1 := alloc1.ToTaskIdentityClaims(nil, "web")
idToken, _, err := srv.encrypter.SignClaims(claims1)
must.NoError(t, err)
claims2 := alloc2.ToTaskIdentityClaims(nil, "web")
noPermissionsToken, _, err := srv.encrypter.SignClaims(claims2)
must.NoError(t, err)
claims3 := alloc3.ToTaskIdentityClaims(alloc3.Job, "web")
idDispatchToken, _, err := srv.encrypter.SignClaims(claims3)
must.NoError(t, err)
// corrupt the signature of the token
idTokenParts := strings.Split(idToken, ".")
must.Len(t, 3, idTokenParts)
sig := []string(strings.Split(idTokenParts[2], ""))
rand.Shuffle(len(sig), func(i, j int) {
sig[i], sig[j] = sig[j], sig[i]
})
idTokenParts[2] = strings.Join(sig, "")
invalidIDToken := strings.Join(idTokenParts, ".")
claims4 := alloc4.ToTaskIdentityClaims(alloc4.Job, "web")
wiOnlyToken, _, err := srv.encrypter.SignClaims(claims4)
must.NoError(t, err)
policy := mock.ACLPolicy()
policy.Rules = `namespace "nondefault-namespace" {
variables {
path "nomad/jobs/*" { capabilities = ["list"] }
path "other/path" { capabilities = ["read"] }
}}`
policy.JobACL = &structs.JobACL{
Namespace: ns,
JobID: jobID,
Group: alloc1.TaskGroup,
}
policy.SetHash()
err = store.UpsertACLPolicies(structs.MsgTypeTestSetup, 1100, []*structs.ACLPolicy{policy})
must.NoError(t, err)
aclToken := mock.ACLToken()
aclToken.Policies = []string{policy.Name}
err = store.UpsertACLTokens(structs.MsgTypeTestSetup, 1150, []*structs.ACLToken{aclToken})
must.NoError(t, err)
variablesRPC := NewVariablesEndpoint(srv, nil, srv.encrypter)
testFn := func(args *structs.QueryOptions, cap, path string) error {
err := srv.Authenticate(nil, args)
if err != nil {
return structs.ErrPermissionDenied
}
_, _, err = variablesRPC.handleMixedAuthEndpoint(
*args, cap, path)
return err
}
t.Run("terminal alloc should be denied", func(t *testing.T) {
err := testFn(
&structs.QueryOptions{AuthToken: idToken, Namespace: ns}, acl.PolicyList,
fmt.Sprintf("nomad/jobs/%s/web/web", jobID))
must.EqError(t, err, structs.ErrPermissionDenied.Error())
})
// make alloc non-terminal
alloc1.ClientStatus = structs.AllocClientStatusRunning
must.NoError(t, store.UpsertAllocs(
structs.MsgTypeTestSetup, 1200, []*structs.Allocation{alloc1}))
t.Run("wrong namespace should be denied", func(t *testing.T) {
err := testFn(&structs.QueryOptions{
AuthToken: idToken, Namespace: structs.DefaultNamespace}, acl.PolicyList,
fmt.Sprintf("nomad/jobs/%s/web/web", jobID))
must.EqError(t, err, structs.ErrPermissionDenied.Error())
})
testCases := []struct {
name string
token string
cap string
path string
expectedErr error
}{
{
name: "valid claim for path with task secret",
token: idToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/web/web", jobID),
expectedErr: nil,
},
{
name: "valid claim for path with group secret",
token: idToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/web", jobID),
expectedErr: nil,
},
{
name: "valid claim for path with job secret",
token: idToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s", jobID),
expectedErr: nil,
},
{
name: "valid claim for path with dispatch job secret",
token: idDispatchToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s", jobID),
expectedErr: nil,
},
{
name: "valid claim for path with namespace secret",
token: idToken,
cap: acl.PolicyRead,
path: "nomad/jobs",
expectedErr: nil,
},
{
name: "valid claim for job-attached policy",
token: idToken,
cap: acl.PolicyRead,
path: "other/path",
expectedErr: nil,
},
{
name: "valid claim for job-attached policy path denied",
token: idToken,
cap: acl.PolicyRead,
path: "other/not-allowed",
expectedErr: structs.ErrPermissionDenied,
},
{
name: "valid claim for job-attached policy capability denied",
token: idToken,
cap: acl.PolicyWrite,
path: "other/path",
expectedErr: structs.ErrPermissionDenied,
},
{
name: "valid claim for job-attached policy capability with cross-job access",
token: idToken,
cap: acl.PolicyList,
path: "nomad/jobs/some-other",
expectedErr: nil,
},
{
name: "valid claim with no permissions denied by path",
token: noPermissionsToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/w", jobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "valid claim with no permissions allowed by namespace",
token: noPermissionsToken,
cap: acl.PolicyList,
path: "nomad/jobs",
expectedErr: nil,
},
{
name: "valid claim with no permissions denied by capability",
token: noPermissionsToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/w", jobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "missing auth token is denied",
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web/web", jobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "invalid signature is denied",
token: invalidIDToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web/web", jobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "invalid claim for dispatched ID",
token: idDispatchToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s", alloc3.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "acl token read policy is allowed to list",
token: aclToken.SecretID,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web/web", jobID),
expectedErr: nil,
},
{
name: "acl token read policy is not allowed to write",
token: aclToken.SecretID,
cap: acl.PolicyWrite,
path: fmt.Sprintf("nomad/jobs/%s/web/web", jobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token can read own task",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/web/web", alloc4.JobID),
expectedErr: nil,
},
{
name: "WI token can list own task",
token: wiOnlyToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web/web", alloc4.JobID),
expectedErr: nil,
},
{
name: "WI token can read own group",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/web", alloc4.JobID),
expectedErr: nil,
},
{
name: "WI token can list own group",
token: wiOnlyToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web", alloc4.JobID),
expectedErr: nil,
},
{
name: "WI token cannot read another task in group",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/web/other", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token cannot list another task in group",
token: wiOnlyToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web/other", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token cannot read another task in group",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/web/other", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token cannot list a task in another group",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/other/web", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token cannot read a task in another group",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: fmt.Sprintf("nomad/jobs/%s/other/web", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token cannot read a group in another job",
token: wiOnlyToken,
cap: acl.PolicyRead,
path: "nomad/jobs/other/web/web",
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token cannot list a group in another job",
token: wiOnlyToken,
cap: acl.PolicyList,
path: "nomad/jobs/other/web/web",
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token extra trailing slash is denied",
token: wiOnlyToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/web/", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
{
name: "WI token invalid prefix is denied",
token: wiOnlyToken,
cap: acl.PolicyList,
path: fmt.Sprintf("nomad/jobs/%s/w", alloc4.JobID),
expectedErr: structs.ErrPermissionDenied,
},
}
for _, tc := range testCases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
err := testFn(
&structs.QueryOptions{AuthToken: tc.token, Namespace: ns},
tc.cap, tc.path)
if tc.expectedErr == nil {
must.NoError(t, err)
} else {
must.EqError(t, err, tc.expectedErr.Error())
}
})
}
}
func TestVariablesEndpoint_Apply_ACL(t *testing.T) {
ci.Parallel(t)
srv, rootToken, shutdown := TestACLServer(t, func(c *Config) {
c.NumSchedulers = 0 // Prevent automatic dequeue
})
defer shutdown()
testutil.WaitForLeader(t, srv.RPC)
codec := rpcClient(t, srv)
state := srv.fsm.State()
pol := mock.NamespacePolicyWithVariables(
structs.DefaultNamespace, "", []string{"list-jobs"},
map[string][]string{
"dropbox/*": {"write"},
})
writeToken := mock.CreatePolicyAndToken(t, state, 1003, "test-invalid", pol)
sv1 := mock.Variable()
sv1.ModifyIndex = 0
var svHold *structs.VariableDecrypted
opMap := map[string]structs.VarOp{
"set": structs.VarOpSet,
"cas": structs.VarOpCAS,
"delete": structs.VarOpDelete,
"delete-cas": structs.VarOpDeleteCAS,
}
for name, op := range opMap {
t.Run(name+"/no token", func(t *testing.T) {
sv1 := sv1
applyReq := structs.VariablesApplyRequest{
Op: op,
Var: sv1,
WriteRequest: structs.WriteRequest{Region: "global"},
}
applyResp := new(structs.VariablesApplyResponse)
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, applyResp)
must.EqError(t, err, structs.ErrPermissionDenied.Error())
})
}
t.Run("cas/management token/new", func(t *testing.T) {
applyReq := structs.VariablesApplyRequest{
Op: structs.VarOpCAS,
Var: sv1,
WriteRequest: structs.WriteRequest{
Region: "global",
AuthToken: rootToken.SecretID,
},
}
applyResp := new(structs.VariablesApplyResponse)
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, applyResp)
must.NoError(t, err)
must.Eq(t, structs.VarOpResultOk, applyResp.Result)
must.Eq(t, sv1.Items, applyResp.Output.Items)
svHold = applyResp.Output
})
t.Run("cas with current", func(t *testing.T) {
must.NotNil(t, svHold)
sv := svHold
sv.Items["new"] = "newVal"
applyReq := structs.VariablesApplyRequest{
Op: structs.VarOpCAS,
Var: sv,
WriteRequest: structs.WriteRequest{
Region: "global",
AuthToken: rootToken.SecretID,
},
}
applyResp := new(structs.VariablesApplyResponse)
applyReq.AuthToken = rootToken.SecretID
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, &applyResp)
must.NoError(t, err)
must.Eq(t, structs.VarOpResultOk, applyResp.Result)
must.Eq(t, sv.Items, applyResp.Output.Items)
svHold = applyResp.Output
})
t.Run("cas with stale", func(t *testing.T) {
must.NotNil(t, sv1) // TODO: query these directly
must.NotNil(t, svHold)
sv1 := sv1
svHold := svHold
applyReq := structs.VariablesApplyRequest{
Op: structs.VarOpCAS,
Var: sv1,
WriteRequest: structs.WriteRequest{
Region: "global",
AuthToken: rootToken.SecretID,
},
}
applyResp := new(structs.VariablesApplyResponse)
applyReq.AuthToken = rootToken.SecretID
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, &applyResp)
must.NoError(t, err)
must.Eq(t, structs.VarOpResultConflict, applyResp.Result)
must.Eq(t, svHold.VariableMetadata, applyResp.Conflict.VariableMetadata)
must.Eq(t, svHold.Items, applyResp.Conflict.Items)
})
sv3 := mock.Variable()
sv3.Path = "dropbox/a"
sv3.ModifyIndex = 0
t.Run("cas/write-only/read own new", func(t *testing.T) {
sv3 := sv3
applyReq := structs.VariablesApplyRequest{
Op: structs.VarOpCAS,
Var: sv3,
WriteRequest: structs.WriteRequest{
Region: "global",
AuthToken: writeToken.SecretID,
},
}
applyResp := new(structs.VariablesApplyResponse)
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, &applyResp)
must.NoError(t, err)
must.Eq(t, structs.VarOpResultOk, applyResp.Result)
must.Eq(t, sv3.Items, applyResp.Output.Items)
svHold = applyResp.Output
})
t.Run("cas/write only/conflict redacted", func(t *testing.T) {
must.NotNil(t, sv3)
must.NotNil(t, svHold)
sv3 := sv3
svHold := svHold
applyReq := structs.VariablesApplyRequest{
Op: structs.VarOpCAS,
Var: sv3,
WriteRequest: structs.WriteRequest{
Region: "global",
AuthToken: writeToken.SecretID,
},
}
applyResp := new(structs.VariablesApplyResponse)
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, &applyResp)
must.NoError(t, err)
must.Eq(t, structs.VarOpResultRedacted, applyResp.Result)
must.Eq(t, svHold.VariableMetadata, applyResp.Conflict.VariableMetadata)
must.Nil(t, applyResp.Conflict.Items)
})
t.Run("cas/write only/read own upsert", func(t *testing.T) {
must.NotNil(t, svHold)
sv := svHold
sv.Items["upsert"] = "read"
applyReq := structs.VariablesApplyRequest{
Op: structs.VarOpCAS,
Var: sv,
WriteRequest: structs.WriteRequest{
Region: "global",
AuthToken: writeToken.SecretID,
},
}
applyResp := new(structs.VariablesApplyResponse)
err := msgpackrpc.CallWithCodec(codec, structs.VariablesApplyRPCMethod, &applyReq, &applyResp)
must.NoError(t, err)
must.Eq(t, structs.VarOpResultOk, applyResp.Result)
must.Eq(t, sv.Items, applyResp.Output.Items)
})
}
func TestVariablesEndpoint_ListFiltering(t *testing.T) {
ci.Parallel(t)
srv, _, shutdown := TestACLServer(t, func(c *Config) {
c.NumSchedulers = 0 // Prevent automatic dequeue
})
defer shutdown()
testutil.WaitForLeader(t, srv.RPC)
codec := rpcClient(t, srv)
ns := "nondefault-namespace"
idx := uint64(1000)
alloc := mock.Alloc()
alloc.Job.ID = "job1"
alloc.JobID = "job1"
alloc.TaskGroup = "group"
alloc.Job.TaskGroups[0].Name = "group"
alloc.ClientStatus = structs.AllocClientStatusRunning
alloc.Job.Namespace = ns
alloc.Namespace = ns
store := srv.fsm.State()
must.NoError(t, store.UpsertNamespaces(idx, []*structs.Namespace{{Name: ns}}))
idx++
must.NoError(t, store.UpsertAllocs(
structs.MsgTypeTestSetup, idx, []*structs.Allocation{alloc}))
claims := alloc.ToTaskIdentityClaims(alloc.Job, "web")
token, _, err := srv.encrypter.SignClaims(claims)
must.NoError(t, err)
writeVar := func(ns, path string) {
idx++
sv := mock.VariableEncrypted()
sv.Namespace = ns
sv.Path = path
resp := store.VarSet(idx, &structs.VarApplyStateRequest{
Op: structs.VarOpSet,
Var: sv,
})
must.NoError(t, resp.Error)
}
writeVar(ns, "nomad/jobs/job1/group/web")
writeVar(ns, "nomad/jobs/job1/group")
writeVar(ns, "nomad/jobs/job1")
writeVar(ns, "nomad/jobs/job1/group/other")
writeVar(ns, "nomad/jobs/job1/other/web")
writeVar(ns, "nomad/jobs/job2/group/web")
req := &structs.VariablesListRequest{
QueryOptions: structs.QueryOptions{
Namespace: ns,
Prefix: "nomad",
AuthToken: token,
Region: "global",
},
}
var resp structs.VariablesListResponse
must.NoError(t, msgpackrpc.CallWithCodec(codec, "Variables.List", req, &resp))
found := []string{}
for _, variable := range resp.Data {
found = append(found, variable.Path)
}
expect := []string{
"nomad/jobs/job1",
"nomad/jobs/job1/group",
"nomad/jobs/job1/group/web",
}
must.Eq(t, expect, found)
}
func TestVariablesEndpoint_ComplexACLPolicies(t *testing.T) {
ci.Parallel(t)
srv, _, shutdown := TestACLServer(t, func(c *Config) {
c.NumSchedulers = 0 // Prevent automatic dequeue
})
defer shutdown()
testutil.WaitForLeader(t, srv.RPC)
codec := rpcClient(t, srv)
idx := uint64(1000)
policyRules := `
namespace "dev" {
variables {
path "*" { capabilities = ["list", "read"] }
path "system/*" { capabilities = ["deny"] }
path "config/system/*" { capabilities = ["deny"] }
}
}
namespace "prod" {
variables {
path "*" {
capabilities = ["list"]
}
}
}
namespace "*" {}
`
store := srv.fsm.State()
must.NoError(t, store.UpsertNamespaces(1000, []*structs.Namespace{
{Name: "dev"}, {Name: "prod"}, {Name: "other"}}))
idx++
token := mock.CreatePolicyAndToken(t, store, idx, "developer", policyRules)
writeVar := func(ns, path string) {
idx++
sv := mock.VariableEncrypted()
sv.Namespace = ns
sv.Path = path
resp := store.VarSet(idx, &structs.VarApplyStateRequest{
Op: structs.VarOpSet,
Var: sv,
})
must.NoError(t, resp.Error)
}
writeVar("dev", "system/never-list")
writeVar("dev", "config/system/never-list")
writeVar("dev", "config/can-read")
writeVar("dev", "project/can-read")
writeVar("prod", "system/can-list")
writeVar("prod", "config/system/can-list")
writeVar("prod", "config/can-list")
writeVar("prod", "project/can-list")
writeVar("other", "system/never-list")
writeVar("other", "config/system/never-list")
writeVar("other", "config/never-list")
writeVar("other", "project/never-list")
testListPrefix := func(ns, prefix string, expectedCount int, expectErr error) {
t.Run(fmt.Sprintf("ns=%s-prefix=%s", ns, prefix), func(t *testing.T) {
req := &structs.VariablesListRequest{
QueryOptions: structs.QueryOptions{
Namespace: ns,
Prefix: prefix,
AuthToken: token.SecretID,
Region: "global",
},
}
var resp structs.VariablesListResponse
if expectErr != nil {
must.EqError(t,
msgpackrpc.CallWithCodec(codec, "Variables.List", req, &resp),
expectErr.Error())
return
}
must.NoError(t, msgpackrpc.CallWithCodec(codec, "Variables.List", req, &resp))
found := "found:\n"
for _, sv := range resp.Data {
found += fmt.Sprintf(" ns=%s path=%s\n", sv.Namespace, sv.Path)
}
must.Len(t, expectedCount, resp.Data, must.Sprintf("%s", found))
})
}
testListPrefix("dev", "system", 0, nil)
testListPrefix("dev", "config/system", 0, nil)
testListPrefix("dev", "config", 1, nil)
testListPrefix("dev", "project", 1, nil)
testListPrefix("dev", "", 2, nil)
testListPrefix("prod", "system", 1, nil)
testListPrefix("prod", "config/system", 1, nil)
testListPrefix("prod", "config", 2, nil)
testListPrefix("prod", "project", 1, nil)
testListPrefix("prod", "", 4, nil)
// list gives empty but no error!
testListPrefix("other", "system", 0, nil)
testListPrefix("other", "config/system", 0, nil)
testListPrefix("other", "config", 0, nil)
testListPrefix("other", "project", 0, nil)
testListPrefix("other", "", 0, nil)
testListPrefix("*", "system", 1, nil)
testListPrefix("*", "config/system", 1, nil)
testListPrefix("*", "config", 3, nil)
testListPrefix("*", "project", 2, nil)
testListPrefix("*", "", 6, nil)
}
func TestVariablesEndpoint_GetVariable_Blocking(t *testing.T) {
ci.Parallel(t)
s1, cleanupS1 := TestServer(t, nil)
defer cleanupS1()
state := s1.fsm.State()
codec := rpcClient(t, s1)
testutil.WaitForLeader(t, s1.RPC)
// First create an unrelated variable.
delay := 100 * time.Millisecond
time.AfterFunc(delay, func() {
writeVar(t, s1, 100, "default", "aaa")
})
// Upsert the variable we are watching later
delay = 200 * time.Millisecond
time.AfterFunc(delay, func() {
writeVar(t, s1, 200, "default", "bbb")
})
// Lookup the variable
req := &structs.VariablesReadRequest{
Path: "bbb",
QueryOptions: structs.QueryOptions{
Region: "global",
MinQueryIndex: 150,
MaxQueryTime: 500 * time.Millisecond,
},
}
var resp structs.VariablesReadResponse
start := time.Now()
if err := msgpackrpc.CallWithCodec(codec, "Variables.Read", req, &resp); err != nil {
t.Fatalf("err: %v", err)
}
elapsed := time.Since(start)
if elapsed < delay {
t.Fatalf("should block (returned in %s) %#v", elapsed, resp)
}
if elapsed > req.MaxQueryTime {
t.Fatalf("blocking query timed out %#v", resp)
}
if resp.Index != 200 {
t.Fatalf("Bad index: %d %d", resp.Index, 200)
}
if resp.Data == nil || resp.Data.Path != "bbb" {
t.Fatalf("bad: %#v", resp.Data)
}
// Variable update triggers watches
delay = 100 * time.Millisecond
time.AfterFunc(delay, func() {
writeVar(t, s1, 300, "default", "bbb")
})
req.QueryOptions.MinQueryIndex = 250
var resp2 structs.VariablesReadResponse
start = time.Now()
if err := msgpackrpc.CallWithCodec(codec, "Variables.Read", req, &resp2); err != nil {
t.Fatalf("err: %v", err)
}
elapsed = time.Since(start)
if elapsed < delay {
t.Fatalf("should block (returned in %s) %#v", elapsed, resp2)
}
if elapsed > req.MaxQueryTime {
t.Fatal("blocking query timed out")
}
if resp2.Index != 300 {
t.Fatalf("Bad index: %d %d", resp2.Index, 300)
}
if resp2.Data == nil || resp2.Data.Path != "bbb" {
t.Fatalf("bad: %#v", resp2.Data)
}
// Variable delete triggers watches
delay = 100 * time.Millisecond
time.AfterFunc(delay, func() {
sv := mock.VariableEncrypted()
sv.Path = "bbb"
if resp := state.VarDelete(400, &structs.VarApplyStateRequest{Op: structs.VarOpDelete, Var: sv}); !resp.IsOk() {
t.Fatalf("err: %v", resp.Error)
}
})
req.QueryOptions.MinQueryIndex = 350
var resp3 structs.VariablesReadResponse
start = time.Now()
if err := msgpackrpc.CallWithCodec(codec, "Variables.Read", req, &resp3); err != nil {
t.Fatalf("err: %v", err)
}
elapsed = time.Since(start)
if elapsed < delay {
t.Fatalf("should block (returned in %s) %#v", elapsed, resp)
}
if elapsed > req.MaxQueryTime {
t.Fatal("blocking query timed out")
}
if resp3.Index != 400 {
t.Fatalf("Bad index: %d %d", resp3.Index, 400)
}
if resp3.Data != nil {
t.Fatalf("bad: %#v", resp3.Data)
}
}
func writeVar(t *testing.T, s *Server, idx uint64, ns, path string) {
store := s.fsm.State()
sv := mock.Variable()
sv.Namespace = ns
sv.Path = path
bPlain, err := json.Marshal(sv.Items)
must.NoError(t, err)
bEnc, kID, err := s.encrypter.Encrypt(bPlain)
must.NoError(t, err)
sve := &structs.VariableEncrypted{
VariableMetadata: sv.VariableMetadata,
VariableData: structs.VariableData{
Data: bEnc,
KeyID: kID,
},
}
resp := store.VarSet(idx, &structs.VarApplyStateRequest{
Op: structs.VarOpSet,
Var: sve,
})
must.NoError(t, resp.Error)
}