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Merge pull request #11126 from hashicorp/dnephin/acl-legacy-remove-resolve-and-get-policy 

acl: remove ACL.GetPolicy RPC endpoint and ACLResolver.resolveTokenLegacy
This commit is contained in:
Daniel Nephin 2021-10-04 16:29:51 -04:00 committed by GitHub
parent a18d298c6b b6435259c3
commit 5ac360b22d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 20 additions and 723 deletions
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48
acl/policy.go
View File

@ -453,54 +453,6 @@ func NewPolicyFromSource(id string, revision uint64, rules string, syntax Syntax
return policy, err
}
// TODO(ACL-Legacy): remove this
func (policy *Policy) ConvertToLegacy() *Policy {
converted := &Policy{
ID: policy.ID,
Revision: policy.Revision,
PolicyRules: PolicyRules{
ACL: policy.ACL,
Keyring: policy.Keyring,
Operator: policy.Operator,
},
}
converted.Agents = append(converted.Agents, policy.Agents...)
converted.Agents = append(converted.Agents, policy.AgentPrefixes...)
converted.Keys = append(converted.Keys, policy.Keys...)
converted.Keys = append(converted.Keys, policy.KeyPrefixes...)
converted.Nodes = append(converted.Nodes, policy.Nodes...)
converted.Nodes = append(converted.Nodes, policy.NodePrefixes...)
converted.Services = append(converted.Services, policy.Services...)
converted.Services = append(converted.Services, policy.ServicePrefixes...)
converted.Sessions = append(converted.Sessions, policy.Sessions...)
converted.Sessions = append(converted.Sessions, policy.SessionPrefixes...)
converted.Events = append(converted.Events, policy.Events...)
converted.Events = append(converted.Events, policy.EventPrefixes...)
converted.PreparedQueries = append(converted.PreparedQueries, policy.PreparedQueries...)
converted.PreparedQueries = append(converted.PreparedQueries, policy.PreparedQueryPrefixes...)
return converted
}
// TODO(ACL-Legacy): remove this
func (policy *Policy) ConvertFromLegacy() *Policy {
return &Policy{
ID: policy.ID,
Revision: policy.Revision,
PolicyRules: PolicyRules{
AgentPrefixes: policy.Agents,
KeyPrefixes: policy.Keys,
NodePrefixes: policy.Nodes,
ServicePrefixes: policy.Services,
SessionPrefixes: policy.Sessions,
EventPrefixes: policy.Events,
PreparedQueryPrefixes: policy.PreparedQueries,
Keyring: policy.Keyring,
Operator: policy.Operator,
},
}
}
// takesPrecedenceOver returns true when permission a
// should take precedence over permission b
func takesPrecedenceOver(a, b string) bool {

4
agent/acl_test.go
View File

@ -76,10 +76,6 @@ func NewTestACLAgent(t *testing.T, name string, hcl string, resolveAuthz authzRe
return a
}
func (a *TestACLAgent) UseLegacyACLs() bool {
return false
}
func (a *TestACLAgent) ResolveToken(secretID string) (acl.Authorizer, error) {
if a.resolveAuthzFn == nil {
return nil, fmt.Errorf("ResolveToken call is unexpected - no authz resolver callback set")

1
agent/agent.go
View File

@ -143,7 +143,6 @@ type delegate interface {
ResolveTokenAndDefaultMeta(token string, entMeta *structs.EnterpriseMeta, authzContext *acl.AuthorizerContext) (acl.Authorizer, error)
RPC(method string, args interface{}, reply interface{}) error
UseLegacyACLs() bool
SnapshotRPC(args *structs.SnapshotRequest, in io.Reader, out io.Writer, replyFn structs.SnapshotReplyFn) error
Shutdown() error
Stats() map[string]map[string]string

157
agent/consul/acl.go
View File

@ -83,10 +83,12 @@ const (
// currently used will backoff as it detects that it is remaining in legacy mode.
// However the initial min value is kept small so that new cluster creation
// can enter into new ACL mode quickly.
// TODO(ACL-Legacy-Compat): remove
aclModeCheckMinInterval = 50 * time.Millisecond
// aclModeCheckMaxInterval controls the maximum interval for how often the agent
// checks if it should be using the new or legacy ACL system.
// TODO(ACL-Legacy-Compat): remove
aclModeCheckMaxInterval = 30 * time.Second
// Maximum number of re-resolution requests to be made if the token is modified between
@ -170,7 +172,6 @@ func tokenSecretCacheID(token string) string {
type ACLResolverDelegate interface {
ACLDatacenter(legacy bool) string
UseLegacyACLs() bool
ResolveIdentityFromToken(token string) (bool, structs.ACLIdentity, error)
ResolvePolicyFromID(policyID string) (bool, *structs.ACLPolicy, error)
ResolveRoleFromID(roleID string) (bool, *structs.ACLRole, error)
@ -382,134 +383,6 @@ func (r *ACLResolver) Close() {
r.aclConf.Close()
}
func (r *ACLResolver) fetchAndCacheTokenLegacy(token string, cached *structs.AuthorizerCacheEntry) (acl.Authorizer, error) {
req := structs.ACLPolicyResolveLegacyRequest{
Datacenter: r.delegate.ACLDatacenter(true),
ACL: token,
}
cacheTTL := r.config.ACLTokenTTL
if cached != nil {
cacheTTL = cached.TTL
}
var reply structs.ACLPolicyResolveLegacyResponse
err := r.delegate.RPC("ACL.GetPolicy", &req, &reply)
if err == nil {
parent := acl.RootAuthorizer(reply.Parent)
if parent == nil {
var authorizer acl.Authorizer
if cached != nil {
authorizer = cached.Authorizer
}
r.cache.PutAuthorizerWithTTL(token, authorizer, cacheTTL)
return authorizer, acl.ErrInvalidParent
}
var policies []*acl.Policy
policy := reply.Policy
if policy != nil {
policies = append(policies, policy.ConvertFromLegacy())
}
authorizer, err := acl.NewPolicyAuthorizerWithDefaults(parent, policies, r.aclConf)
r.cache.PutAuthorizerWithTTL(token, authorizer, reply.TTL)
return authorizer, err
}
if acl.IsErrNotFound(err) {
// Make sure to remove from the cache if it was deleted
r.cache.PutAuthorizerWithTTL(token, nil, cacheTTL)
return nil, acl.ErrNotFound
}
// some other RPC error
switch r.config.ACLDownPolicy {
case "allow":
r.cache.PutAuthorizerWithTTL(token, acl.AllowAll(), cacheTTL)
return acl.AllowAll(), nil
case "async-cache", "extend-cache":
if cached != nil {
r.cache.PutAuthorizerWithTTL(token, cached.Authorizer, cacheTTL)
return cached.Authorizer, nil
}
fallthrough
default:
r.cache.PutAuthorizerWithTTL(token, acl.DenyAll(), cacheTTL)
return acl.DenyAll(), nil
}
}
func (r *ACLResolver) resolveTokenLegacy(token string) (structs.ACLIdentity, acl.Authorizer, error) {
defer metrics.MeasureSince([]string{"acl", "resolveTokenLegacy"}, time.Now())
// Attempt to resolve locally first (local results are not cached)
// This is only useful for servers where either legacy replication is being
// done or the server is within the primary datacenter.
if done, identity, err := r.delegate.ResolveIdentityFromToken(token); done {
if err == nil && identity != nil {
policies, err := r.resolvePoliciesForIdentity(identity)
if err != nil {
return identity, nil, err
}
authz, err := policies.Compile(r.cache, r.aclConf)
if err != nil {
return identity, nil, err
}
return identity, acl.NewChainedAuthorizer([]acl.Authorizer{authz, acl.RootAuthorizer(r.config.ACLDefaultPolicy)}), nil
}
return nil, nil, err
}
identity := &missingIdentity{
reason: "legacy-token",
token: token,
}
// Look in the cache prior to making a RPC request
entry := r.cache.GetAuthorizer(token)
if entry != nil && entry.Age() <= minTTL(entry.TTL, r.config.ACLTokenTTL) {
metrics.IncrCounter([]string{"acl", "token", "cache_hit"}, 1)
if entry.Authorizer != nil {
return identity, entry.Authorizer, nil
}
return identity, nil, acl.ErrNotFound
}
metrics.IncrCounter([]string{"acl", "token", "cache_miss"}, 1)
// Resolve the token in the background and wait on the result if we must
waitChan := r.legacyGroup.DoChan(token, func() (interface{}, error) {
authorizer, err := r.fetchAndCacheTokenLegacy(token, entry)
return authorizer, err
})
waitForResult := entry == nil || r.config.ACLDownPolicy != "async-cache"
if !waitForResult {
// waitForResult being false requires the cacheEntry to not be nil
if entry.Authorizer != nil {
return identity, entry.Authorizer, nil
}
return identity, nil, acl.ErrNotFound
}
// block waiting for the async RPC to finish.
res := <-waitChan
var authorizer acl.Authorizer
if res.Val != nil { // avoid a nil-not-nil bug
authorizer = res.Val.(acl.Authorizer)
}
return identity, authorizer, res.Err
}
func (r *ACLResolver) fetchAndCacheIdentityFromToken(token string, cached *structs.IdentityCacheEntry) (structs.ACLIdentity, error) {
cacheID := tokenSecretCacheID(token)
@ -1244,13 +1117,6 @@ func (r *ACLResolver) ResolveTokenToIdentityAndAuthorizer(token string) (structs
return ident, authz, nil
}
if r.delegate.UseLegacyACLs() {
// TODO(partitions,acls): do we have to care about legacy acls?
identity, authorizer, err := r.resolveTokenLegacy(token)
r.handleACLDisabledError(err)
return identity, authorizer, err
}
defer metrics.MeasureSince([]string{"acl", "ResolveToken"}, time.Now())
identity, policies, err := r.resolveTokenToIdentityAndPolicies(token)
@ -1310,12 +1176,6 @@ func (r *ACLResolver) ResolveTokenToIdentity(token string) (structs.ACLIdentity,
return ident, nil
}
if r.delegate.UseLegacyACLs() {
identity, _, err := r.resolveTokenLegacy(token)
r.handleACLDisabledError(err)
return identity, err
}
defer metrics.MeasureSince([]string{"acl", "ResolveTokenToIdentity"}, time.Now())
return r.resolveIdentityFromToken(token)
@ -1337,19 +1197,6 @@ func (r *ACLResolver) ACLsEnabled() bool {
return true
}
func (r *ACLResolver) GetMergedPolicyForToken(token string) (structs.ACLIdentity, *acl.Policy, error) {
ident, policies, err := r.resolveTokenToIdentityAndPolicies(token)
if err != nil {
return nil, nil, err
}
if len(policies) == 0 {
return nil, nil, acl.ErrNotFound
}
policy, err := policies.Merge(r.cache, r.aclConf)
return ident, policy, err
}
// aclFilter is used to filter results from our state store based on ACL rules
// configured for the provided token.
type aclFilter struct {

33
agent/consul/acl_client.go
View File

@ -1,9 +1,6 @@
package consul
import (
"sync/atomic"
"time"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/lib/serf"
@ -27,36 +24,6 @@ var clientACLCacheConfig *structs.ACLCachesConfig = &structs.ACLCachesConfig{
Roles: 128,
}
func (c *Client) UseLegacyACLs() bool {
return atomic.LoadInt32(&c.useNewACLs) == 0
}
func (c *Client) monitorACLMode() {
waitTime := aclModeCheckMinInterval
for {
foundServers, mode, _ := ServersGetACLMode(c, "", c.config.Datacenter)
if foundServers && mode == structs.ACLModeEnabled {
c.logger.Debug("transitioned out of legacy ACL mode")
c.updateSerfTags("acls", string(structs.ACLModeEnabled))
atomic.StoreInt32(&c.useNewACLs, 1)
return
}
select {
case <-c.shutdownCh:
return
case <-time.After(waitTime):
// do nothing
}
// calculate the amount of time to wait for the next round
waitTime = waitTime * 2
if waitTime > aclModeCheckMaxInterval {
waitTime = aclModeCheckMaxInterval
}
}
}
func (c *Client) ACLDatacenter(legacy bool) string {
// For resolution running on clients, when not in
// legacy mode the servers within the current datacenter

55
agent/consul/acl_endpoint.go
View File

@ -170,11 +170,6 @@ func (a *ACL) aclPreCheck() error {
if !a.srv.config.ACLsEnabled {
return acl.ErrDisabled
}
if a.srv.UseLegacyACLs() {
return fmt.Errorf("The ACL system is currently in legacy mode.")
}
return nil
}
@ -1372,56 +1367,6 @@ func (a *ACL) PolicyResolve(args *structs.ACLPolicyBatchGetRequest, reply *struc
return nil
}
// makeACLETag returns an ETag for the given parent and policy.
func makeACLETag(parent string, policy *acl.Policy) string {
return fmt.Sprintf("%s:%s", parent, policy.ID)
}
// GetPolicy is used to retrieve a compiled policy object with a TTL. Does not
// support a blocking query.
//
// TODO(ACL-Legacy): remove this
func (a *ACL) GetPolicy(args *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
if done, err := a.srv.ForwardRPC("ACL.GetPolicy", args, reply); done {
return err
}
// Verify we are allowed to serve this request
if a.srv.config.PrimaryDatacenter != a.srv.config.Datacenter {
return acl.ErrDisabled
}
// Get the policy via the cache
parent := a.srv.config.ACLResolverSettings.ACLDefaultPolicy
ident, policy, err := a.srv.acls.GetMergedPolicyForToken(args.ACL)
if err != nil {
return err
}
if token, ok := ident.(*structs.ACLToken); ok && token.Type == structs.ACLTokenTypeManagement {
parent = "manage"
}
// translates the structures internals to most closely match what could be expressed in the original rule language
policy = policy.ConvertToLegacy()
// Generate an ETag
etag := makeACLETag(parent, policy)
// Setup the response
reply.ETag = etag
reply.TTL = a.srv.config.ACLResolverSettings.ACLTokenTTL
a.srv.setQueryMeta(&reply.QueryMeta)
// Only send the policy on an Etag mis-match
if args.ETag != etag {
reply.Parent = parent
reply.Policy = policy
}
return nil
}
// ReplicationStatus is used to retrieve the current ACL replication status.
func (a *ACL) ReplicationStatus(args *structs.DCSpecificRequest,
reply *structs.ACLReplicationStatus) error {

6
agent/consul/acl_endpoint_legacy.go
View File

@ -6,6 +6,12 @@ import (
"github.com/hashicorp/consul/agent/structs"
)
type LegacyACLGetPolicy struct{}
func (a *ACL) GetPolicy(*LegacyACLGetPolicy, *LegacyACLGetPolicy) error {
return fmt.Errorf("ACL.GetPolicy: the legacy ACL system has been removed")
}
func (a *ACL) Bootstrap(*structs.DCSpecificRequest, *structs.ACL) error {
return fmt.Errorf("ACL.Bootstrap: the legacy ACL system has been removed")
}

24
agent/consul/acl_endpoint_test.go
View File

@ -74,30 +74,6 @@ func TestACLEndpoint_BootstrapTokens(t *testing.T) {
require.Equal(t, out.CreateIndex, out.ModifyIndex)
}
func TestACLEndpoint_GetPolicy_Management(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
_, srv, codec := testACLServerWithConfig(t, nil, false)
// wait for leader election and leader establishment to finish.
// after this the global management policy, master token and
// anonymous token will have been injected into the state store
// and we will be ready to resolve the master token
waitForLeaderEstablishment(t, srv)
req := structs.ACLPolicyResolveLegacyRequest{
Datacenter: srv.config.Datacenter,
ACL: TestDefaultMasterToken,
}
var resp structs.ACLPolicyResolveLegacyResponse
require.NoError(t, msgpackrpc.CallWithCodec(codec, "ACL.GetPolicy", &req, &resp))
require.Equal(t, "manage", resp.Parent)
}
func TestACLEndpoint_ReplicationStatus(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")

1
agent/consul/acl_server.go
View File

@ -95,6 +95,7 @@ func (s *Server) updateSerfTags(key, value string) {
s.updateEnterpriseSerfTags(key, value)
}
// TODO:
func (s *Server) updateACLAdvertisement() {
// One thing to note is that once in new ACL mode the server will
// never transition to legacy ACL mode. This is not currently a

324
agent/consul/acl_test.go
View File

@ -434,7 +434,6 @@ type ACLResolverTestDelegate struct {
localTokens bool
localPolicies bool
localRoles bool
getPolicyFn func(*structs.ACLPolicyResolveLegacyRequest, *structs.ACLPolicyResolveLegacyResponse) error
tokenReadFn func(*structs.ACLTokenGetRequest, *structs.ACLTokenResponse) error
policyResolveFn func(*structs.ACLPolicyBatchGetRequest, *structs.ACLPolicyBatchResponse) error
roleResolveFn func(*structs.ACLRoleBatchGetRequest, *structs.ACLRoleBatchResponse) error
@ -675,12 +674,6 @@ func (d *ACLResolverTestDelegate) ResolveRoleFromID(roleID string) (bool, *struc
func (d *ACLResolverTestDelegate) RPC(method string, args interface{}, reply interface{}) error {
switch method {
case "ACL.GetPolicy":
atomic.AddInt32(&d.remoteLegacyResolutions, 1)
if d.getPolicyFn != nil {
return d.getPolicyFn(args.(*structs.ACLPolicyResolveLegacyRequest), reply.(*structs.ACLPolicyResolveLegacyResponse))
}
panic("Bad Test Implementation: should provide a getPolicyFn to the ACLResolverTestDelegate")
case "ACL.TokenRead":
atomic.AddInt32(&d.remoteTokenResolutions, 1)
if d.tokenReadFn != nil {
@ -1571,49 +1564,6 @@ func TestACLResolver_Client(t *testing.T) {
require.EqualValues(t, 0, delegate.remoteLegacyResolutions)
})
t.Run("Resolve-Identity-Legacy", func(t *testing.T) {
t.Parallel()
delegate := &ACLResolverTestDelegate{
enabled: true,
datacenter: "dc1",
legacy: true,
localTokens: false,
localPolicies: false,
getPolicyFn: func(_ *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
reply.Parent = "deny"
reply.TTL = 30
reply.ETag = "nothing"
reply.Policy = &acl.Policy{
ID: "not-needed",
PolicyRules: acl.PolicyRules{
Nodes: []*acl.NodeRule{
{
Name: "foo",
Policy: acl.PolicyWrite,
},
},
},
}
return nil
},
}
r := newTestACLResolver(t, delegate, nil)
ident, err := r.ResolveTokenToIdentity("found-policy-and-role")
require.NoError(t, err)
require.NotNil(t, ident)
require.Equal(t, "legacy-token", ident.ID())
require.EqualValues(t, 0, delegate.localTokenResolutions)
require.EqualValues(t, 0, delegate.remoteTokenResolutions)
require.EqualValues(t, 0, delegate.localPolicyResolutions)
require.EqualValues(t, 0, delegate.remotePolicyResolutions)
require.EqualValues(t, 0, delegate.localRoleResolutions)
require.EqualValues(t, 0, delegate.remoteRoleResolutions)
require.EqualValues(t, 1, delegate.remoteLegacyResolutions)
})
t.Run("Concurrent-Token-Resolve", func(t *testing.T) {
t.Parallel()
@ -2231,280 +2181,6 @@ func testACLResolver_variousTokens(t *testing.T, delegate *ACLResolverTestDelega
})
}
func TestACLResolver_Legacy(t *testing.T) {
t.Parallel()
t.Run("Cached", func(t *testing.T) {
t.Parallel()
cached := false
delegate := &ACLResolverTestDelegate{
enabled: true,
datacenter: "dc1",
legacy: true,
localTokens: false,
localPolicies: false,
getPolicyFn: func(_ *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
if !cached {
reply.Parent = "deny"
reply.TTL = 30
reply.ETag = "nothing"
reply.Policy = &acl.Policy{
ID: "not-needed",
PolicyRules: acl.PolicyRules{
Nodes: []*acl.NodeRule{
{
Name: "foo",
Policy: acl.PolicyWrite,
},
},
},
}
cached = true
return nil
}
return errRPC
},
}
r := newTestACLResolver(t, delegate, nil)
authz, err := r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
// this should be from the cache
authz, err = r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
})
t.Run("Cache-Expiry-Extend", func(t *testing.T) {
t.Parallel()
cached := false
delegate := &ACLResolverTestDelegate{
enabled: true,
datacenter: "dc1",
legacy: true,
localTokens: false,
localPolicies: false,
getPolicyFn: func(_ *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
if !cached {
reply.Parent = "deny"
reply.TTL = 0
reply.ETag = "nothing"
reply.Policy = &acl.Policy{
ID: "not-needed",
PolicyRules: acl.PolicyRules{
Nodes: []*acl.NodeRule{
{
Name: "foo",
Policy: acl.PolicyWrite,
},
},
},
}
cached = true
return nil
}
return errRPC
},
}
r := newTestACLResolver(t, delegate, func(config *ACLResolverConfig) {
config.Config.ACLTokenTTL = 0
})
authz, err := r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
// this should be from the cache
authz, err = r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
})
t.Run("Cache-Expiry-Allow", func(t *testing.T) {
t.Parallel()
cached := false
delegate := &ACLResolverTestDelegate{
enabled: true,
datacenter: "dc1",
legacy: true,
localTokens: false,
localPolicies: false,
getPolicyFn: func(_ *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
if !cached {
reply.Parent = "deny"
reply.TTL = 0
reply.ETag = "nothing"
reply.Policy = &acl.Policy{
ID: "not-needed",
PolicyRules: acl.PolicyRules{
Nodes: []*acl.NodeRule{
{
Name: "foo",
Policy: acl.PolicyWrite,
},
},
},
}
cached = true
return nil
}
return errRPC
},
}
r := newTestACLResolver(t, delegate, func(config *ACLResolverConfig) {
config.Config.ACLDownPolicy = "allow"
config.Config.ACLTokenTTL = 0
})
authz, err := r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
// this should be from the cache
authz, err = r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("fo", nil))
})
t.Run("Cache-Expiry-Deny", func(t *testing.T) {
t.Parallel()
cached := false
delegate := &ACLResolverTestDelegate{
enabled: true,
datacenter: "dc1",
legacy: true,
localTokens: false,
localPolicies: false,
getPolicyFn: func(_ *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
if !cached {
reply.Parent = "deny"
reply.TTL = 0
reply.ETag = "nothing"
reply.Policy = &acl.Policy{
ID: "not-needed",
PolicyRules: acl.PolicyRules{
Nodes: []*acl.NodeRule{
{
Name: "foo",
Policy: acl.PolicyWrite,
},
},
},
}
cached = true
return nil
}
return errRPC
},
}
r := newTestACLResolver(t, delegate, func(config *ACLResolverConfig) {
config.Config.ACLDownPolicy = "deny"
config.Config.ACLTokenTTL = 0
})
authz, err := r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
// this should be from the cache
authz, err = r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Deny, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
})
t.Run("Cache-Expiry-Async-Cache", func(t *testing.T) {
t.Parallel()
cached := false
delegate := &ACLResolverTestDelegate{
enabled: true,
datacenter: "dc1",
legacy: true,
localTokens: false,
localPolicies: false,
getPolicyFn: func(_ *structs.ACLPolicyResolveLegacyRequest, reply *structs.ACLPolicyResolveLegacyResponse) error {
if !cached {
reply.Parent = "deny"
reply.TTL = 0
reply.ETag = "nothing"
reply.Policy = &acl.Policy{
ID: "not-needed",
PolicyRules: acl.PolicyRules{
Nodes: []*acl.NodeRule{
{
Name: "foo",
Policy: acl.PolicyWrite,
},
},
},
}
cached = true
return nil
}
return acl.ErrNotFound
},
}
r := newTestACLResolver(t, delegate, func(config *ACLResolverConfig) {
config.Config.ACLDownPolicy = "async-cache"
config.Config.ACLTokenTTL = 0
})
authz, err := r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
// there is a bit of translation that happens
require.Equal(t, acl.Allow, authz.NodeWrite("foo", nil))
require.Equal(t, acl.Allow, authz.NodeWrite("foo/bar", nil))
require.Equal(t, acl.Deny, authz.NodeWrite("fo", nil))
// delivered from the cache
authz2, err := r.ResolveToken("foo")
require.NoError(t, err)
require.NotNil(t, authz)
require.True(t, authz == authz2)
// the go routine spawned will eventually return and this will be a not found error
retry.Run(t, func(t *retry.R) {
authz3, err := r.ResolveToken("foo")
assert.Error(t, err)
assert.True(t, acl.IsErrNotFound(err))
assert.Nil(t, authz3)
})
})
}
func TestACL_filterHealthChecks(t *testing.T) {
t.Parallel()
// Create some health checks.

17
agent/consul/client.go
View File

@ -58,10 +58,6 @@ type Client struct {
// acls is used to resolve tokens to effective policies
acls *ACLResolver
// DEPRECATED (ACL-Legacy-Compat) - Only needed while we support both
// useNewACLs is a flag to indicate whether we are using the new ACL system
useNewACLs int32
// Connection pool to consul servers
connPool *pool.ConnPool
@ -121,7 +117,6 @@ func NewClient(config *Config, deps Deps) (*Client, error) {
return nil, err
}
c.useNewACLs = 0
aclConfig := ACLResolverConfig{
Config: config.ACLResolverSettings,
Delegate: c,
@ -154,12 +149,6 @@ func NewClient(config *Config, deps Deps) (*Client, error) {
// handlers depend on the router and the router depends on Serf.
go c.lanEventHandler()
// This needs to happen after initializing c.router to prevent a race
// condition where the router manager is used when the pointer is nil
if c.acls.ACLsEnabled() {
go c.monitorACLMode()
}
return c, nil
}
@ -365,11 +354,7 @@ func (c *Client) Stats() map[string]map[string]string {
}
if c.config.ACLsEnabled {
if c.UseLegacyACLs() {
stats["consul"]["acl"] = "legacy"
} else {
stats["consul"]["acl"] = "enabled"
}
stats["consul"]["acl"] = "enabled"
} else {
stats["consul"]["acl"] = "disabled"
}

8
agent/consul/client_serf.go
View File

@ -9,7 +9,6 @@ import (
"github.com/hashicorp/serf/serf"
"github.com/hashicorp/consul/agent/metadata"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/lib"
libserf "github.com/hashicorp/consul/lib/serf"
"github.com/hashicorp/consul/logging"
@ -32,13 +31,6 @@ func (c *Client) setupSerf(conf *serf.Config, ch chan serf.Event, path string) (
if c.config.AdvertiseReconnectTimeout != 0 {
conf.Tags[libserf.ReconnectTimeoutTag] = c.config.AdvertiseReconnectTimeout.String()
}
if c.acls.ACLsEnabled() {
// we start in legacy mode and then transition to normal
// mode once we know the cluster can handle it.
conf.Tags["acls"] = string(structs.ACLModeLegacy)
} else {
conf.Tags["acls"] = string(structs.ACLModeDisabled)
}
// We use the Intercept variant here to ensure that serf and memberlist logs
// can be streamed via the monitor endpoint

1
agent/consul/leader_federation_state_ae_test.go
View File

@ -376,7 +376,6 @@ func TestLeader_FederationStateAntiEntropyPruning_ACLDeny(t *testing.T) {
c.ACLMasterToken = "root"
c.ACLResolverSettings.ACLDefaultPolicy = "deny"
})
testrpc.WaitForLeader(t, s2.RPC, "dc2")
defer os.RemoveAll(dir2)
defer s2.Shutdown()

5
agent/consul/server_serf.go
View File

@ -73,10 +73,9 @@ func (s *Server) setupSerf(conf *serf.Config, ch chan serf.Event, path string, w
}
if s.acls.ACLsEnabled() {
// we start in legacy mode and allow upgrading later
conf.Tags["acls"] = string(structs.ACLModeLegacy)
conf.Tags[metadata.TagACLs] = string(structs.ACLModeEnabled)
} else {
conf.Tags["acls"] = string(structs.ACLModeDisabled)
conf.Tags[metadata.TagACLs] = string(structs.ACLModeDisabled)
}
// feature flag: advertise support for federation states

9
agent/delegate_mock_test.go
View File

@ -3,12 +3,13 @@ package agent
import (
"io"
"github.com/hashicorp/serf/serf"
"github.com/stretchr/testify/mock"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/consul"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/serf/serf"
"github.com/stretchr/testify/mock"
)
type delegateMock struct {
@ -65,10 +66,6 @@ func (m *delegateMock) RPC(method string, args interface{}, reply interface{}) e
return m.Called(method, args, reply).Error(0)
}
func (m *delegateMock) UseLegacyACLs() bool {
return m.Called().Bool(0)
}
func (m *delegateMock) SnapshotRPC(args *structs.SnapshotRequest, in io.Reader, out io.Writer, replyFn structs.SnapshotReplyFn) error {
return m.Called(args, in, out, replyFn).Error(0)
}

4
agent/metadata/server.go
View File

@ -98,7 +98,7 @@ func IsConsulServer(m serf.Member) (bool, *Server) {
}
var acls structs.ACLMode
if aclMode, ok := m.Tags["acls"]; ok {
if aclMode, ok := m.Tags[TagACLs]; ok {
acls = structs.ACLMode(aclMode)
} else {
acls = structs.ACLModeUnknown
@ -194,6 +194,8 @@ func IsConsulServer(m serf.Member) (bool, *Server) {
return true, parts
}
const TagACLs = "acls"
const featureFlagPrefix = "ft_"
// AddFeatureFlags to the tags. The tags map is expected to be a serf.Config.Tags.

9
agent/structs/acl.go
View File

@ -811,15 +811,6 @@ func (policies ACLPolicies) Compile(cache *ACLCaches, entConf *acl.Config) (acl.
return authorizer, nil
}
func (policies ACLPolicies) Merge(cache *ACLCaches, entConf *acl.Config) (*acl.Policy, error) {
parsed, err := policies.resolveWithCache(cache, entConf)
if err != nil {
return nil, err
}
return acl.MergePolicies(parsed), nil
}
type ACLRoles []*ACLRole
// HashKey returns a consistent hash for a set of roles.

11
agent/structs/acl_cache.go
View File

@ -3,8 +3,9 @@ package structs
import (
"time"
"github.com/hashicorp/consul/acl"
lru "github.com/hashicorp/golang-lru"
"github.com/hashicorp/consul/acl"
)
type ACLCachesConfig struct {
@ -218,14 +219,6 @@ func (c *ACLCaches) PutAuthorizer(id string, authorizer acl.Authorizer) {
c.authorizers.Add(id, &AuthorizerCacheEntry{Authorizer: authorizer, CacheTime: time.Now()})
}
func (c *ACLCaches) PutAuthorizerWithTTL(id string, authorizer acl.Authorizer, ttl time.Duration) {
if c == nil || c.authorizers == nil {
return
}
c.authorizers.Add(id, &AuthorizerCacheEntry{Authorizer: authorizer, CacheTime: time.Now(), TTL: ttl})
}
func (c *ACLCaches) PutRole(roleID string, role *ACLRole) {
if c == nil || c.roles == nil {
return

25
agent/structs/acl_legacy.go
View File

@ -8,9 +8,6 @@ package structs
import (
"fmt"
"time"
"github.com/hashicorp/consul/acl"
)
const (
@ -114,25 +111,3 @@ type ACLBootstrap struct {
RaftIndex
}
// ACLPolicyResolveLegacyRequest is used to request an ACL by Token SecretID, conditionally
// filtering on an ID
type ACLPolicyResolveLegacyRequest struct {
Datacenter string // The Datacenter the RPC may be sent to
ACL string // The Tokens Secret ID
ETag string // Caching ETag to prevent resending the policy when not needed
QueryOptions
}
// RequestDatacenter returns the DC this request is targeted to.
func (r *ACLPolicyResolveLegacyRequest) RequestDatacenter() string {
return r.Datacenter
}
type ACLPolicyResolveLegacyResponse struct {
ETag string
Parent string
Policy *acl.Policy
TTL time.Duration
QueryMeta
}

1
agent/structs/structs_test.go
View File

@ -64,7 +64,6 @@ func TestStructs_Implements(t *testing.T) {
_ RPCInfo = &SessionRequest{}
_ RPCInfo = &SessionSpecificRequest{}
_ RPCInfo = &EventFireRequest{}
_ RPCInfo = &ACLPolicyResolveLegacyRequest{}
_ RPCInfo = &ACLPolicyBatchGetRequest{}
_ RPCInfo = &ACLPolicyGetRequest{}
_ RPCInfo = &ACLTokenGetRequest{}