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Updated documentation and adding more test case for async-cache

This commit is contained in:
Pierre Souchay 2018-07-01 20:00:20 +02:00
parent 382bec0897
commit 6dfbbf1350
3 changed files with 109 additions and 102 deletions
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6
agent/consul/acl_test.go
View File

@ -589,6 +589,9 @@ func TestACL_DownPolicy_ExtendCache(t *testing.T) {
func TestACL_Replication(t *testing.T) {
t.Parallel()
aclExtendPolicies := []string{"extend-cache", "async-cache"} //"async-cache"
for _, aclDownPolicy := range aclExtendPolicies {
dir1, s1 := testServerWithConfig(t, func(c *Config) {
c.ACLDatacenter = "dc1"
c.ACLMasterToken = "root"
@ -602,7 +605,7 @@ func TestACL_Replication(t *testing.T) {
c.Datacenter = "dc2"
c.ACLDatacenter = "dc1"
c.ACLDefaultPolicy = "deny"
c.ACLDownPolicy = "extend-cache"
c.ACLDownPolicy = aclDownPolicy
c.EnableACLReplication = true
c.ACLReplicationInterval = 10 * time.Millisecond
c.ACLReplicationApplyLimit = 1000000
@ -701,6 +704,7 @@ func TestACL_Replication(t *testing.T) {
t.Fatalf("unexpected read")
}
}
}
func TestACL_MultiDC_Found(t *testing.T) {
t.Parallel()

6
website/source/docs/agent/options.html.md
View File

@ -496,11 +496,13 @@ Consul will not enable TLS for the HTTP API unless the `https` port has been ass
to enable ACL support.
* <a name="acl_down_policy"></a><a href="#acl_down_policy">`acl_down_policy`</a> - Either
"allow", "deny" or "extend-cache"; "extend-cache" is the default. In the case that the
"allow", "deny", "extend-cache" or "async-cache"; "extend-cache" is the default. In the case that the
policy for a token cannot be read from the [`acl_datacenter`](#acl_datacenter) or leader
node, the down policy is applied. In "allow" mode, all actions are permitted, "deny" restricts
all operations, and "extend-cache" allows any cached ACLs to be used, ignoring their TTL
values. If a non-cached ACL is used, "extend-cache" acts like "deny".
values. If a non-cached ACL is used, "extend-cache" acts like "deny". "async-cache" acts the same
way as "extend-cache" but performs updates asynchronously when ACL is present but its TTL is
expired.
* <a name="acl_agent_master_token"></a><a href="#acl_agent_master_token">`acl_agent_master_token`</a> -
Used to access <a href="/api/agent.html">agent endpoints</a> that require agent read

7
website/source/docs/guides/acl.html.md
View File

@ -1062,9 +1062,10 @@ is set to "extend-cache", tokens will be resolved during the outage using the
replicated set of ACLs. An [ACL replication status](/api/acl.html#acl_replication_status)
endpoint is available to monitor the health of the replication process.
Also note that in recent versions of Consul (greater than 1.2.0), using
`acl_down_policy = "extend-cache"` refreshes token asynchronously when an ACL is
already cached and is expired. It allows to avoid having issues when connectivity with
the authoritative is not completely broken, but very slow.
`acl_down_policy = "async-cache"` refreshes token asynchronously when an ACL is
already cached and is expired while similar semantics than "extend-cache".
It allows to avoid having issues when connectivity with the authoritative is not completely
broken, but very slow.
Locally-resolved ACLs will be cached using the [`acl_ttl`](/docs/agent/options.html#acl_ttl)
setting of the non-authoritative datacenter, so these entries may persist in the