Commit Graph

14827 Commits

Author SHA1 Message Date
Freddy 7d48383041
Avoid panic on concurrent writes to cached service config map (#10647)
If multiple instances of a service are co-located on the same node then
their proxies will all share a cache entry for their resolved service
configuration. This is because the cache key contains the name of the
watched service but does not take into account the ID of the watching
proxies.

This means that there will be multiple agent service manager watches
that can wake up on the same cache update. These watchers then
concurrently modify the value in the cache when merging the resolved
config into the local proxy definitions.

To avoid this concurrent map write we will only delete the key from
opaque config in the local proxy definition after the merge, rather
than from the cached value before the merge.
2021-07-20 10:09:29 -06:00
Blake Covarrubias 85c36bd229 website: Fix circular redirect with TLS on existing cluster
Fix an issue where /docs/k8s/operations/tls-on-existing-cluster would
never load when navigating directly to the URL because of a circular
redirect.
2021-07-20 08:41:43 -07:00
hc-github-team-consul-core aa97ed5ac6 auto-updated agent/uiserver/bindata_assetfs.go from commit 1eb7a83ee 2021-07-20 15:15:10 +00:00
Kenia 116a255084
ui: Add tests for topology metrics stats (#10600) 2021-07-20 11:09:15 -04:00
Blake Covarrubias 9a84fe7864
docs: Add intentions to ACL System docs (#10323)
Adds mention of `intentions` rules to ACL System and ACL Rules pages.

Resolves #9790
2021-07-19 15:31:41 -07:00
Blake Covarrubias 441a6c9969
Add DNS recursor strategy option (#10611)
This change adds a new `dns_config.recursor_strategy` option which
controls how Consul queries DNS resolvers listed in the `recursors`
config option. The supported options are `sequential` (default), and
`random`.

Closes #8807

Co-authored-by: Blake Covarrubias <blake@covarrubi.as>
Co-authored-by: Priyanka Sengupta <psengupta@flatiron.com>
2021-07-19 15:22:51 -07:00
Blake Covarrubias 4d2bc76d62 docs: Fix spelling errors across website 2021-07-19 14:29:54 -07:00
Daniel Nephin 901a5cdd8c
Merge pull request #10396 from hashicorp/dnephin/fix-more-data-races
Fix some data races
2021-07-16 18:21:58 -04:00
Daniel Nephin 23dfb8e9ad
Merge pull request #10009 from hashicorp/dnephin/trim-dns-response-with-edns
dns: properly trim response when EDNS is used
2021-07-16 18:09:25 -04:00
Daniel Nephin db29c51cd2 acl: use SetHash consistently in testPolicyForID
A previous commit used SetHash on two of the cases to fix a data race. This commit applies
that change to all cases. Using SetHash in this test helper should ensure that the
test helper behaves closer to production.
2021-07-16 17:59:56 -04:00
Daniel Nephin 0cb479f782
Merge pull request #10353 from hashicorp/dnephin/prune-build-scripts-1
Remove a few unused things from build-support
2021-07-16 14:27:00 -04:00
Daniel Nephin 63772f7ac4 dns: improve naming of error to match DNS terminology
Co-authored-by: Blake Covarrubias <blake@covarrubi.as>
2021-07-16 12:40:24 -04:00
Dhia Ayachi 079decdabd fix truncate when NS is set
Also: fix test to catch the issue
2021-07-16 12:40:11 -04:00
Evan Culver 521c423075
acls: Show `AuthMethodNamespace` when reading/listing ACL token meta (#10598) 2021-07-15 10:38:52 -07:00
Daniel Nephin b4ab87111c
Merge pull request #10567 from hashicorp/dnephin/config-unexport-build
config: unexport the remaining builder methods
2021-07-15 12:05:19 -04:00
Freddy a942a2e025
Merge pull request #10621 from hashicorp/vuln/validate-sans 2021-07-15 09:43:55 -06:00
freddygv cfc31f957b Add changelog entry 2021-07-15 09:27:46 -06:00
Daniel Nephin 4c78825f0c
Merge pull request #10617 from hashicorp/dnephin/config-add-missing-docs
docs: add config options that were missing
2021-07-15 11:23:32 -04:00
Daniel Nephin f286ea0922
Fix godoc comment
Co-authored-by: Freddy <freddygv@users.noreply.github.com>
2021-07-15 11:22:46 -04:00
Daniel Nephin b362ce092e
Merge pull request #10618 from hashicorp/dnephin/docs-add-deprecation-version-grpc-port
docs: add deprecation version for ports.grpc settings
2021-07-15 11:14:51 -04:00
R.B. Boyer e018d8a10b
xds: ensure single L7 deny intention with default deny policy does not result in allow action (CVE-2021-36213) (#10619) 2021-07-15 10:09:00 -05:00
hc-github-team-consul-core 6bf7c98227 auto-updated agent/uiserver/bindata_assetfs.go from commit 0762da3a6 2021-07-15 11:23:49 +00:00
John Cowen ffbe54971f
ui: [BUGFIX] Ensure we use the ns query param name when requesting permissions (#10608)
Previously when namespaces were enabled, we weren't requesting permission for the actively selected namespace, and instead always checking the permissions for the default namespace.

This commit ensures we request permissions for the actively selected namespace.
2021-07-15 12:19:07 +01:00
freddygv b6b42c34dc Add TODOs about partition handling 2021-07-14 22:21:55 -06:00
freddygv 3d4fa44c22 Update golden files 2021-07-14 22:21:55 -06:00
freddygv a7de87e95b Validate SANs for passthrough clusters and failovers 2021-07-14 22:21:55 -06:00
freddygv a6f7d806f6 Update golden files to account for SAN validation 2021-07-14 22:21:55 -06:00
freddygv 3f11449363 Validate Subject Alternative Name for upstreams
These changes ensure that the identity of services dialed is
cryptographically verified.

For all upstreams we validate against SPIFFE IDs in the format used by
Consul's service mesh:

spiffe://<trust-domain>/ns/<namespace>/dc/<datacenter>/svc/<service>
2021-07-14 22:20:27 -06:00
Daniel Nephin 27871498f0 Fix a data race in TestACLResolver_Client
By setting the hash when we create the policy.

```
WARNING: DATA RACE
Read at 0x00c0028b4b10 by goroutine 1182:
  github.com/hashicorp/consul/agent/structs.(*ACLPolicy).SetHash()
      /home/daniel/pers/code/consul/agent/structs/acl.go:701 +0x40d
  github.com/hashicorp/consul/agent/structs.ACLPolicies.resolveWithCache()
      /home/daniel/pers/code/consul/agent/structs/acl.go:779 +0xfe
  github.com/hashicorp/consul/agent/structs.ACLPolicies.Compile()
      /home/daniel/pers/code/consul/agent/structs/acl.go:809 +0xf1
  github.com/hashicorp/consul/agent/consul.(*ACLResolver).ResolveTokenToIdentityAndAuthorizer()
      /home/daniel/pers/code/consul/agent/consul/acl.go:1226 +0x6ef
  github.com/hashicorp/consul/agent/consul.resolveTokenAsync()
      /home/daniel/pers/code/consul/agent/consul/acl_test.go:66 +0x5c

Previous write at 0x00c0028b4b10 by goroutine 1509:
  github.com/hashicorp/consul/agent/structs.(*ACLPolicy).SetHash()
      /home/daniel/pers/code/consul/agent/structs/acl.go:730 +0x3a8
  github.com/hashicorp/consul/agent/structs.ACLPolicies.resolveWithCache()
      /home/daniel/pers/code/consul/agent/structs/acl.go:779 +0xfe
  github.com/hashicorp/consul/agent/structs.ACLPolicies.Compile()
      /home/daniel/pers/code/consul/agent/structs/acl.go:809 +0xf1
  github.com/hashicorp/consul/agent/consul.(*ACLResolver).ResolveTokenToIdentityAndAuthorizer()
      /home/daniel/pers/code/consul/agent/consul/acl.go:1226 +0x6ef
  github.com/hashicorp/consul/agent/consul.resolveTokenAsync()
      /home/daniel/pers/code/consul/agent/consul/acl_test.go:66 +0x5c

Goroutine 1182 (running) created at:
  github.com/hashicorp/consul/agent/consul.TestACLResolver_Client.func4()
      /home/daniel/pers/code/consul/agent/consul/acl_test.go:1669 +0x459
  testing.tRunner()
      /usr/lib/go/src/testing/testing.go:1193 +0x202

Goroutine 1509 (running) created at:
  github.com/hashicorp/consul/agent/consul.TestACLResolver_Client.func4()
      /home/daniel/pers/code/consul/agent/consul/acl_test.go:1668 +0x415
  testing.tRunner()
      /usr/lib/go/src/testing/testing.go:1193 +0x202
```
2021-07-14 18:58:16 -04:00
Daniel Nephin 291315e39f Update serf
To pick up data race fixes
2021-07-14 18:58:16 -04:00
Daniel Nephin c3c8058fd7 agent: remove deprecated call in a test 2021-07-14 18:58:16 -04:00
Daniel Nephin 9d471269d8 agent: fix a data race in a test
The test was modifying a pointer to a struct that had been passed to
another goroutine. Instead create a new struct to modify.

```
WARNING: DATA RACE
Write at 0x00c01407c3c0 by goroutine 832:
  github.com/hashicorp/consul/agent.TestServiceManager_PersistService_API()
      /home/daniel/pers/code/consul/agent/service_manager_test.go:446 +0x1d86
  testing.tRunner()
      /usr/lib/go/src/testing/testing.go:1193 +0x202

Previous read at 0x00c01407c3c0 by goroutine 938:
  reflect.typedmemmove()
      /usr/lib/go/src/runtime/mbarrier.go:177 +0x0
  reflect.Value.Set()
      /usr/lib/go/src/reflect/value.go:1569 +0x13b
  github.com/mitchellh/copystructure.(*walker).Primitive()
      /home/daniel/go/pkg/mod/github.com/mitchellh/copystructure@v1.0.0/copystructure.go:289 +0x190
  github.com/mitchellh/reflectwalk.walkPrimitive()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:252 +0x31b
  github.com/mitchellh/reflectwalk.walk()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:179 +0x24d
  github.com/mitchellh/reflectwalk.walkStruct()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:386 +0x4ec
  github.com/mitchellh/reflectwalk.walk()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:188 +0x656
  github.com/mitchellh/reflectwalk.walkStruct()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:386 +0x4ec
  github.com/mitchellh/reflectwalk.walk()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:188 +0x656
  github.com/mitchellh/reflectwalk.Walk()
      /home/daniel/go/pkg/mod/github.com/mitchellh/reflectwalk@v1.0.1/reflectwalk.go:92 +0x164
  github.com/mitchellh/copystructure.Config.Copy()
      /home/daniel/go/pkg/mod/github.com/mitchellh/copystructure@v1.0.0/copystructure.go:69 +0xe7
  github.com/mitchellh/copystructure.Copy()
      /home/daniel/go/pkg/mod/github.com/mitchellh/copystructure@v1.0.0/copystructure.go:13 +0x84
  github.com/hashicorp/consul/agent.mergeServiceConfig()
      /home/daniel/pers/code/consul/agent/service_manager.go:362 +0x56
  github.com/hashicorp/consul/agent.(*serviceConfigWatch).handleUpdate()
      /home/daniel/pers/code/consul/agent/service_manager.go:279 +0x250
  github.com/hashicorp/consul/agent.(*serviceConfigWatch).runWatch()
      /home/daniel/pers/code/consul/agent/service_manager.go:246 +0x2d4

Goroutine 832 (running) created at:
  testing.(*T).Run()
      /usr/lib/go/src/testing/testing.go:1238 +0x5d7
  testing.runTests.func1()
      /usr/lib/go/src/testing/testing.go:1511 +0xa6
  testing.tRunner()
      /usr/lib/go/src/testing/testing.go:1193 +0x202
  testing.runTests()
      /usr/lib/go/src/testing/testing.go:1509 +0x612
  testing.(*M).Run()
      /usr/lib/go/src/testing/testing.go:1417 +0x3b3
  main.main()
      _testmain.go:1181 +0x236

Goroutine 938 (running) created at:
  github.com/hashicorp/consul/agent.(*serviceConfigWatch).start()
      /home/daniel/pers/code/consul/agent/service_manager.go:223 +0x4e4
  github.com/hashicorp/consul/agent.(*ServiceManager).AddService()
      /home/daniel/pers/code/consul/agent/service_manager.go:98 +0x344
  github.com/hashicorp/consul/agent.(*Agent).addServiceLocked()
      /home/daniel/pers/code/consul/agent/agent.go:1942 +0x2e4
  github.com/hashicorp/consul/agent.(*Agent).AddService()
      /home/daniel/pers/code/consul/agent/agent.go:1929 +0x337
  github.com/hashicorp/consul/agent.TestServiceManager_PersistService_API()
      /home/daniel/pers/code/consul/agent/service_manager_test.go:400 +0x17c4
  testing.tRunner()
      /usr/lib/go/src/testing/testing.go:1193 +0x202

```
2021-07-14 18:58:16 -04:00
Daniel Nephin 6703787740 agent: fix a data race in DNS tests
The dnsConfig pulled from the atomic.Value is a pointer, so modifying it in place
creates a data race. Use the exported ReloadConfig interface instead.
2021-07-14 18:58:16 -04:00
Daniel Nephin 2946e42a9e agent: fix two data race in agent tests
The LogOutput io.Writer used by TestAgent must allow concurrent reads and writes, and a
bytes.Buffer does not allow this. The bytes.Buffer must be wrapped with a lock to make this safe.
2021-07-14 18:58:16 -04:00
Daniel Nephin ff26294d63 consul: fix data race in leader CA tests
Some global variables are patched to shorter values in these tests. But the goroutines that read
them can outlive the test because nothing waited for them to exit.

This commit adds a Wait() method to the routine manager, so that tests can wait for the goroutines
to exit. This prevents the data race because the 'reset to original value' can happen
after all other goroutines have stopped.
2021-07-14 18:58:15 -04:00
Dhia Ayachi 5ae7c6a490 add changelog entry 2021-07-14 17:50:00 -04:00
Daniel Nephin edd755b7ab dns: correct rcode for qtype not supported
A previous commit started using QueryRefuced, but that is not correct. QueryRefuced refers to
the OpCode, not the query type.

Instead use errNoAnswer because we have no records for that query type.
2021-07-14 17:48:50 -04:00
Dhia Ayachi 48171c43f4 Check response len do not exceed max Buffer size 2021-07-14 17:15:34 -04:00
Dhia Ayachi 8fcac3cef6 add missing test for truncate 2021-07-14 17:15:34 -04:00
Daniel Nephin b4abf8b0ec dns: remove network parameter from two funcs
Now that trimDNSResponse is handled by the caller we don't need to pass this value
around. We can remove it from both the serviceLookup struct, and two functions.
2021-07-14 17:15:34 -04:00
Daniel Nephin 4712e24749 dns: trim response immediately before the write
Previously the response was being trimmed before adding the EDNS values, which could cause it to exceed
the max size.
2021-07-14 17:15:34 -04:00
Daniel Nephin a9e9c6c23e dns: handle errors from dispatch 2021-07-14 17:15:34 -04:00
Daniel Nephin 6cf9ecc1c9 dns: error response from dispatch
So that dispatch can communicate status back to the caller.
2021-07-14 17:15:34 -04:00
Daniel Nephin 9298cfe0f6 dns: refactor dispatch to use an explicit return in each case
In preparation for changing the return value, so that SOA, eDNS trimming and 'not found'
errors can be handled in a single place.
2021-07-14 17:15:34 -04:00
Daniel Nephin b09aa1e3c6 dns: small refactor to setEDNS to return early
Using a guard clause instead of a long nested if.

The diff is best viewed with whitespace turned off.
2021-07-14 17:15:34 -04:00
Daniel Nephin f1bc7bd49a dns: remove unused method
It was added in 5934f803bfb54c1ceeeb6518398f1b82a726459f but it was never used.
2021-07-14 17:15:34 -04:00
Daniel Nephin e3d781d99c dns: remove unnecessary function wrapping
The dispatch function was called from a single place and did nothing but add a default value.
Removing it makes code easier to trace by removing an unnecessary hop.
2021-07-14 17:15:33 -04:00
Daniel Nephin ce6846fba4 docs: add deprecation version for ports.grpc settings 2021-07-14 17:06:13 -04:00
Daniel Nephin 7fff096d8d
Merge pull request #10568 from hashicorp/dnephin/contrib-docs-config
contrib: add first draft of agent configuration docs
2021-07-14 16:54:36 -04:00
Daniel Nephin 152585f323 docs: add config options that were missing
https://github.com/hashicorp/consul/pull/128 added pid_file
https://github.com/hashicorp/consul/pull/1331 added disable_coordinates
2021-07-14 16:51:07 -04:00