Commit Graph

453 Commits

Author SHA1 Message Date
Daniel Nephin 843e08bb23 testing: fix a test for 32-bit
The hcl decoding apparently uses strconv.ParseInt, which fails to parse a 64bit int.
Since hcl v1 is basically EOl, it seems unlikely we'll fix this in hcl.

Since this test is only about loading values from config files, the extra large number
doesn't seem important. Trim a few zeros from the numbers so that they parse
properly on 32bit platforms.

Also skip a slow test when -short is used.
2021-06-29 16:10:21 -04:00
Daniel Nephin b0a2252fa0 inline assignment 2021-06-17 15:43:04 -04:00
Freddy f399fd2add
Rename CatalogDestinationsOnly (#10397)
CatalogDestinationsOnly is a passthrough that would enable dialing
addresses outside of Consul's catalog. However, when this flag is set to
true only _connect_ endpoints for services can be dialed.

This flag is being renamed to signal that non-Connect endpoints can't be
dialed by transparent proxies when the value is set to true.
2021-06-14 14:15:09 -06:00
Freddy 61ae2995b7
Add flag for transparent proxies to dial individual instances (#10329) 2021-06-09 14:34:17 -06:00
Matt Keeler 7e4ea16149 Move some things around to allow for license updating via config reload
The bulk of this commit is moving the LeaderRoutineManager from the agent/consul package into its own package: lib/gort. It also got a renaming and its Start method now requires a context. Requiring that context required updating a whole bunch of other places in the code.
2021-05-25 09:57:50 -04:00
Matt Keeler 84c6c56578 Add OSS bits for supporting specifying the enterprise license via config 2021-05-20 16:11:33 -04:00
Daniel Nephin d9959ba811
Merge pull request #10200 from hashicorp/dnephin/backport-audit-log-config-changes
config: backport audit log config changes from enterprise
2021-05-19 10:58:28 -04:00
Joshua Shanks 9e4051ec65 GH-8728 add raft default values 2021-05-18 14:51:14 -04:00
Daniel Nephin 1cb8d5e476 config: handled deprecated config key with a warning 2021-05-06 18:09:30 -04:00
Daniel Nephin 0707dc3d6b Backport audit log config changes from enterprise 2021-05-06 18:09:30 -04:00
Mark Anderson ac4cb213a1 Fixup agent/config tests
Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-05 09:28:17 -07:00
Daniel Nephin 55f620d636
Merge pull request #10155 from hashicorp/dnephin/config-entry-remove-fields
config-entry: remove Kind and Name field from Mesh config entry
2021-05-04 17:27:56 -04:00
Mark Anderson 10963d0cbd Add support for downstreams
Enhance config by adding SocketPath and LocalSocketPath config values

Supports syntax of the form:
```
services {
  name = "sock_forwarder"
  id = "sock_forwarder.1"
  socket_path = "/tmp/downstream_3.sock"
  connect {
    sidecar_service {
      proxy {
	local_service_socket_path = "/tmp/downstream.sock"
      }
    }
  }
}
```

Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson 5f04b6abe2 Convert mode to string representation
Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson 626b27a874 Continue working through proxy and agent
Rework/listeners, rename makeListener

Refactor, tests pass

Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Mark Anderson 1d9a7df5d4 First changes for unix domain sockets upstreams
Start making structure changes to support unix domain socket address for upstreams

	upstreams = [
	  {
	    destination_name = "echo-service"
	    local_bind_socket_path = "/tmp/upstream.sock"
	    config {
	      passive_health_check {
		interval = "10s"
		max_failures = 42
	      }
	    }
	  }

Signed-off-by: Mark Anderson <manderson@hashicorp.com>
2021-05-04 12:41:43 -07:00
Daniel Nephin bf4c289804 config-entry: remove Kind and Name field from Mesh config entry
No config entry needs a Kind field. It is only used to determine the Go type to
target. As we introduce new config entries (like this one) we can remove the kind field
and have the GetKind method return the single supported value.

In this case (similar to proxy-defaults) the Name field is also unnecessary. We always
use the same value. So we can omit the name field entirely.
2021-04-29 17:11:21 -04:00
Daniel Nephin 5fa077cf0d config: default UseStreamingBackend to true 2021-04-28 18:58:02 -04:00
Freddy 401f3010e0
Rename "cluster" config entry to "mesh" (#10127)
This config entry is being renamed primarily because in k8s the name
cluster could be confusing given that the config entry applies across
federated datacenters.

Additionally, this config entry will only apply to Consul as a service
mesh, so the more generic "cluster" name is not needed.
2021-04-28 16:13:29 -06:00
freddygv eeccba945d Replace TransparentProxy bool with ProxyMode
This PR replaces the original boolean used to configure transparent
proxy mode. It was replaced with a string mode that can be set to:

- "": Empty string is the default for when the setting should be
defaulted from other configuration like config entries.
- "direct": Direct mode is how applications originally opted into the
mesh. Proxy listeners need to be dialed directly.
- "transparent": Transparent mode enables configuring Envoy as a
transparent proxy. Traffic must be captured and redirected to the
inbound and outbound listeners.

This PR also adds a struct for transparent proxy specific configuration.
Initially this is not stored as a pointer. Will revisit that decision
before GA.
2021-04-12 09:35:14 -06:00
Tara Tufano b8e7a90f77
add http2 ping health checks (#8431)
* add http2 ping checks

* fix test issue

* add h2ping check to config resources

* add new test and docs for h2ping

* fix grammatical inconsistency in H2PING documentation

* resolve rebase conflicts, add test for h2ping tls verification failure

* api documentation for h2ping

* update test config data with H2PING

* add H2PING to protocol buffers and update changelog

* fix typo in changelog entry
2021-04-09 15:12:10 -04:00
R.B. Boyer 82245585c6
connect: add toggle to globally disable wildcard outbound network access when transparent proxy is enabled (#9973)
This adds a new config entry kind "cluster" with a single special name "cluster" where this can be controlled.
2021-04-06 13:19:59 -05:00
Freddy 63dcb7fa76
Add TransparentProxy option to proxy definitions 2021-03-17 17:01:45 -06:00
Christopher Broglie 94b02c3954 Add support for configuring TLS ServerName for health checks
Some TLS servers require SNI, but the Golang HTTP client doesn't
include it in the ClientHello when connecting to an IP address. This
change adds a new TLSServerName field to health check definitions to
optionally set it. This fixes #9473.
2021-03-16 18:16:44 -04:00
freddygv 7a3625f58b Add TransparentProxy opt to proxy definition 2021-03-11 11:37:21 -07:00
Silas Rech f71bba20e7
Fix advertise_addr_wan_ipv6 configuration key 2021-03-09 14:56:44 +01:00
Daniel Nephin af2431793b streaming: default rpc.enable_streaming to true
So that all servers will start the grpc server used by streaming
2021-02-25 14:06:04 -05:00
Daniel Nephin 5d478df9b5
Merge pull request #9763 from hashicorp/dnephin/cache-warn-on-error-in-notify
cache: log a warning when Cache.Notify handles an error
2021-02-19 18:30:36 -05:00
Daniel Nephin 005702e098 config: rename testCase fields
So that their name better reflects their purpose
2021-02-16 14:40:16 -05:00
Daniel Nephin e6badb3129 config: make TestLoad_IntegrationWithFlags easier to work with
Replace the large table of tests with individual calls to run(). By using
runCase, failure messages will include the line number for the test case, as
well as a line number from the test functions.

Example:
=== FAIL: agent/config TestLoad_IntegrationWithFlags/failing_case (0.01s)
    runtime_test.go:4721: case: failing case
    runtime_test.go:4864: error "data_dir cannot be empty" does not contain "I expected this error"

Previous:
    runtime_test.go:4864: error "data_dir cannot be empty" does not contain "I expected this error"

Without the line number to the testCase data, debugging these tests is
difficult. It is impossible to jump directly to the test case, and
difficult to find the location because of many similarly named cases.
2021-02-16 14:40:16 -05:00
Daniel Nephin db53954a3f move test case iteration to caller
To make the test case logic more obvious
2021-02-16 14:40:16 -05:00
Daniel Nephin 7499e38f2b config: remove test cases for impossible scenarios
AEInterval is overridden by NonUserSource, so there is no way for a user
to set this value. These two cases represented impossible real world
scenarios.

Instead the test is replaced with one that shows that the AEInterval can
not be set by config.

This change allows us to remove the hcltail and jsontail fields from
testCase
2021-02-16 14:40:15 -05:00
Daniel Nephin 5f2c358255 Fix error checking
There were two identical if lines, remove one and use a switch/case so the compiler
can catch this problem.
2021-02-16 14:40:15 -05:00
Daniel Nephin 1ff2525cee config: move testing shims to LoadOpts
This will allow us to eventually port these tests to use config.Load instead of
unexported functions.
2021-02-16 14:40:15 -05:00
Daniel Nephin a877ec79b6 Remove patchActual, does not appear to be necessary
also small rename and fix comment
2021-02-16 14:40:15 -05:00
Daniel Nephin e47131bfe6 cache: log a warning when Cache.Notify handles an error
Without these warnings, errors are silently ignored, which can make
debugging problems more challenging.
2021-02-12 13:02:23 -05:00
Daniel Nephin fc88c28bb9 config: make config.TestLoad_FullConfig use config.Load
This commit makes a number of changes that should make
TestLoad_FullConfig easier to work with, and make the test more like
real world scenarios.

* use separate files in testdata/ dir to store the config source.
  Separate files are much easier to edit because editors can syntax
  highlight json/hcl, and it makes strings easier to find. Previously
  trying to find strings would match strings used in other tests.
* use the exported config.Load interface instead of internal NewBuilder
  and BuildAndValidate.
* remove the tail config overrides, which are only necessary with
  nonZero works.
2021-01-27 17:51:53 -05:00
Daniel Nephin aa42ff5d81 config: Unexport Builder and NewBuilder
This type and constructor are implementation details of config loading.
All callers should use config.Load.
2021-01-27 17:41:53 -05:00
Daniel Nephin 08b2039f5a config: replace calls to config.NewBuilder with config.Load
This is another incremental change to reduce config loading to a single
small interface. All calls to NewBuilder can be replaced with Load.
2021-01-27 17:34:43 -05:00
Daniel Nephin bd545963cc config: improve the interface of Load
This commit reduces the interface to Load() a bit, in preparation for
unexporting NewBuilder and having everything call Load.

The three arguments are reduced to a single argument by moving the other
two into the options struct.

The three return values are reduced to two by moving the RuntimeConfig
and Warnings into a LoadResult struct.
2021-01-27 17:34:43 -05:00
Daniel Nephin 63ba836257
Merge pull request #9252 from hashicorp/dnephin/config-unmethod
config: remove Builder receiver from funcs that dont use it
2021-01-27 17:31:17 -05:00
Daniel Nephin e8427a48ab agent/consuk: Rename RPCRate -> RPCRateLimit
so that the field name is consistent across config structs.
2021-01-14 17:26:00 -05:00
Daniel Nephin 51464763f4 config: remove Builder receiver from funcs that dont use it
This change allows us to re-use these functions in other places without the Builder, and makes it
more explicit about which functions can warn/error and which can not.
2021-01-11 17:41:58 -05:00
Daniel Nephin 78b02663e9 config: Use golden for TestRuntimeConfig_Sanitize
A golden file makes the expected value easier to work with. This change also
removes a number of shims for enterprise and replaces them with a single one
for the golden filename.
2021-01-11 14:34:03 -05:00
Pierre Souchay 70d2da7582
Display a warning when rpc.enable_streaming = true is set on a client (#9530)
* Display a warning when rpc.enable_streaming = true is set on a client

This option has no effect when running as an agent

* Added warning when server starts with use_streaming_backend but without rpc.enable_streaming

* Added unit test
2021-01-08 15:23:23 -05:00
Daniel Nephin 6094b73d89
Merge pull request #9250 from hashicorp/dnephin/config-tags-2
config: remove unnecessary json/hcl struct tags
2021-01-08 14:08:34 -05:00
Daniel Nephin d5bdc2f539
Merge pull request #9249 from hashicorp/dnephin/config-tags
config: use fields to detect enterprise-only settings
2021-01-07 19:49:29 -05:00
Daniel Nephin f3b30a7ed6 config: remove unnecessary json/hcl struct tags
Using find/replace with regex

        json:"[^"]+"
        hcl:"[^"]+"
2021-01-07 19:42:56 -05:00
Daniel Nephin ee00d7668c config: Use config fields to warn about enterprise settings
It is no safe to assumes that the mapstructure keys will contain all the keys because some config can be specified
with command line flags or literals.

This change allows us to remove the json marshal/unmarshal cycle for command line flags, which will allow
us to remove all of the hcl/json struct tags on config fields.
2021-01-07 19:31:39 -05:00
Daniel Nephin 0679a23921
Merge pull request #9251 from hashicorp/dnephin/config-cleanup-flags-and-opts
config: move testing shims and cleanup some defaults
2021-01-07 19:11:22 -05:00
Daniel Nephin 942ffa7e02 config: use LiteralConfig for flag values 2021-01-07 18:57:53 -05:00
Daniel Nephin 2d0f33591e config: remove t.Parallel and some unused fields from tests
Use go-cmp for better diffs in tests
2021-01-07 18:57:52 -05:00
Michael Montgomery 5a70c2c7e8 Remove unneeded test 2021-01-04 19:47:13 -06:00
Michael Montgomery a1748aa2cb Merge branch 'master' into 6074-allow-config-MaxHeaderBytes 2020-12-30 14:14:05 -06:00
Michael Montgomery 519f537b8b Fixed failing tests
Removed use of `NewTestAgent`, per review comment
Removed CLI flag, per review comment
Updated website documentation
Added changelog entry
2020-12-30 14:09:50 -06:00
Daniel Nephin ef0999547a testing: skip slow tests with -short
Add a skip condition to all tests slower than 100ms.

This change was made using `gotestsum tool slowest` with data from the
last 3 CI runs of master.
See https://github.com/gotestyourself/gotestsum#finding-and-skipping-slow-tests

With this change:

```
$ time go test -count=1 -short ./agent
ok      github.com/hashicorp/consul/agent       0.743s

real    0m4.791s

$ time go test -count=1 -short ./agent/consul
ok      github.com/hashicorp/consul/agent/consul        4.229s

real    0m8.769s
```
2020-12-07 13:42:55 -05:00
Hans Hasselberg 8c5c6e77ec
fix serf_wan documentation (#9289)
WAN config is different than LAN config, source of truth is
f72d2042a8/config.go (L315-L326)
and now the docs are correct.
2020-11-27 20:49:43 +01:00
Daniel Nephin 1987a1eca0 config: remove unused const 2020-11-20 19:17:12 -05:00
Daniel Nephin 8e783fb37b config: move testing shims to BuilderOpts
And remove the devMode field from builder.

This change helps make the Builder state more explicit by moving inputs to the BuilderOps struct,
leaving only fields that can change during Builder.Build on the Builder struct.
2020-11-20 18:31:10 -05:00
Daniel Nephin fcbdfa393e config: Use LiteralSource for some defaults
Using the LiteralSource makes it much easier to find default values, because an IDE reports
the location of a default. With an HCL string they are harder to discover.

Also removes unnecessary mapstructure.Decodes of constant values.
2020-11-20 18:14:17 -05:00
Michael Montgomery ed719c978b Merge branch 'master' into 6074-allow-config-MaxHeaderBytes 2020-11-20 07:43:53 -06:00
Matt Keeler 4bca029be9
Refactor to call non-voting servers read replicas (#9191)
Co-authored-by: Kit Patella <kit@jepsen.io>
2020-11-17 10:53:57 -05:00
Kit Patella 36aaf86647 Merge branch 'mkcp/telemetry/add-all-metric-definitions' of ssh://github.com/hashicorp/consul into mkcp/telemetry/add-all-metric-definitions 2020-11-16 15:26:12 -08:00
Kit Patella 4c30ebbb73 fix some tests that were broken from the TelemetryConfig change 2020-11-16 15:22:36 -08:00
Kit Patella 7ec3ad5b73
linting: sort and group import 2020-11-16 14:17:24 -08:00
Kit Patella 1f0b26c9d3 update runtime_test to handle PrometheusOpts expiry field change 2020-11-16 14:16:12 -08:00
Kit Patella 464d13d80b push prometheus sink definiitons into prometheus.PrometheusOpts 2020-11-16 12:44:47 -08:00
R.B. Boyer a5bd1ba323
agent: return the default ACL policy to callers as a header (#9101)
Header is: X-Consul-Default-ACL-Policy=<allow|deny>

This is of particular utility when fetching matching intentions, as the
fallthrough for a request that doesn't match any intentions is to
enforce using the default acl policy.
2020-11-12 10:38:32 -06:00
Matt Keeler 755fb72994
Switch to using the external autopilot module 2020-11-09 09:22:11 -05:00
R.B. Boyer be9122a8c4
agent: sanitize ui metrics proxy header values on agent/self endpoint (#9104) 2020-11-05 13:25:27 -06:00
R.B. Boyer c8c87ec317
agent: introduce path allow list for requests going through the metrics proxy (#9059)
Added a new option `ui_config.metrics_proxy.path_allowlist`. This defaults to `["/api/v1/query", "/api/v1/query_range"]` when the metrics provider is set to `prometheus`.

Requests that do not use one of the allow-listed paths (via exact match) get a 403 Forbidden response instead.
2020-10-30 16:49:54 -05:00
Michael Montgomery 1c0a46849a Resolves #6074. Adds new option to configure HTTP Server's MaxHeaderBytes with option `-http-max-header-bytes`
Adds tests for behavior
2020-10-29 12:38:19 -05:00
Daniel Nephin 1dcbfd17c3 health: change the name of UseStreamingBackend config
Remove it from the cache section, and update the docs.
2020-10-23 17:47:01 -04:00
Daniel Nephin dd0e8d42c4
Merge pull request #8825 from hashicorp/streaming/add-config
streaming: add config and docs
2020-10-09 14:33:58 -04:00
Daniel Nephin 195511140f config: add field for enabling streaming in the client
agent: register the new streaming cache-type
2020-10-09 14:11:34 -04:00
Matt Keeler 44017f819e
Remove oss/ent divergence of runtime_test.go (#8903) 2020-10-09 10:45:11 -04:00
Kit Patella 40b9769b1f
Merge pull request #8877 from hashicorp/mkcp/telemetry/consul.api.http
Add flag for disabling 1.9 metrics backwards compatibility and warnings when set to default
2020-10-08 13:22:37 -07:00
Matt Keeler 141eb60f06
Add per-agent reconnect timeouts (#8781)
This allows for client agent to be run in a more stateless manner where they may be abruptly terminated and not expected to come back. If advertising a per-agent reconnect timeout using the advertise_reconnect_timeout configuration when that agent leaves, other agents will wait only that amount of time for the agent to come back before reaping it.

This has the advantageous side effect of causing servers to deregister the node/services/checks for that agent sooner than if the global reconnect_timeout was used.
2020-10-08 15:02:19 -04:00
Daniel Nephin 05df7b18a9 config: add field for enabling streaming RPC endpoint 2020-10-08 12:11:20 -04:00
Kit Patella 328036dd37 add config flag to disable 1.9 metrics backwards compatibility. Add warnings on start and reload on default value 2020-10-07 17:12:52 -07:00
R.B. Boyer d6dce2332a
connect: intentions are now managed as a new config entry kind "service-intentions" (#8834)
- Upgrade the ConfigEntry.ListAll RPC to be kind-aware so that older
copies of consul will not see new config entries it doesn't understand
replicate down.

- Add shim conversion code so that the old API/CLI method of interacting
with intentions will continue to work so long as none of these are
edited via config entry endpoints. Almost all of the read-only APIs will
continue to function indefinitely.

- Add new APIs that operate on individual intentions without IDs so that
the UI doesn't need to implement CAS operations.

- Add a new serf feature flag indicating support for
intentions-as-config-entries.

- The old line-item intentions way of interacting with the state store
will transparently flip between the legacy memdb table and the config
entry representations so that readers will never see a hiccup during
migration where the results are incomplete. It uses a piece of system
metadata to control the flip.

- The primary datacenter will begin migrating intentions into config
entries on startup once all servers in the datacenter are on a version
of Consul with the intentions-as-config-entries feature flag. When it is
complete the old state store representations will be cleared. We also
record a piece of system metadata indicating this has occurred. We use
this metadata to skip ALL of this code the next time the leader starts
up.

- The secondary datacenters continue to run the old intentions
replicator until all servers in the secondary DC and primary DC support
intentions-as-config-entries (via serf flag). Once this condition it met
the old intentions replicator ceases.

- The secondary datacenters replicate the new config entries as they are
migrated in the primary. When they detect that the primary has zeroed
it's old state store table it waits until all config entries up to that
point are replicated and then zeroes its own copy of the old state store
table. We also record a piece of system metadata indicating this has
occurred. We use this metadata to skip ALL of this code the next time
the leader starts up.
2020-10-06 13:24:05 -05:00
Kit Patella 9851a16d05 remove consul.api.http from filtered metric prefixes 2020-10-02 14:16:02 -07:00
Kit Patella 5524a43f10
Merge pull request #8271 from coignetp/http-metrics-label
Use method and path as labels for http metrics
2020-10-02 13:41:48 -07:00
Paul Banks 35d249e38f
Merge pull request #8694 from hashicorp/ui-config-metrics
Add config changes for UI metrics
2020-10-01 17:38:03 +01:00
R.B. Boyer 4b525e5d16
agent: enable enable_central_service_config by default (#8746) 2020-10-01 09:19:14 -05:00
Paul Banks 89e539a00d
Fix reload test; address other PR feedback 2020-09-30 18:00:07 +01:00
Paul Banks 497a5d4e36
Add config changes for UI metrics 2020-09-30 17:59:16 +01:00
Daniel Nephin ec5d20b0de
Merge pull request #8554 from hashicorp/dnephin/agent-setup-persisted-tokens
agent: move token persistence from agent into token.Store
2020-09-03 17:29:21 -04:00
R.B. Boyer b0bde51e70
connect: all config entries pick up a meta field (#8596)
Fixes #8595
2020-09-02 14:10:25 -05:00
Daniel Nephin 9535a1b57d token: OSS support for enterprise tokens 2020-08-31 15:10:15 -04:00
Daniel Nephin 8e477feb22 config: use token.Config for ACLToken config
Using the target Config struct reduces the amount of copying and
translating of configuration structs.
2020-08-31 15:10:15 -04:00
Daniel Nephin b64ce07ef7 agent/token: Move token persistence out of agent
And into token.Store. This change isolates any awareness of token
persistence in a single place.

It is a small step in allowing Agent.New to accept its dependencies.
2020-08-31 15:00:34 -04:00
R.B. Boyer a7a8b8d6d9
agent: ensure that we normalize bootstrapped config entries (#8547) 2020-08-27 11:37:25 -05:00
Daniel Nephin a97adadd2b config: use logging.Config in RuntimeConfig
To add structure to RuntimeConfig, and remove the need to translate into a third type.
2020-08-19 13:21:00 -04:00
Daniel Nephin a520cf3ea7 testing: disable global metrics sink in tests
This might be better handled by allowing configuration for the InMemSink interval and retail, and disabling
the global. For now this is a smaller change to remove the goroutine leak caused by tests because go-metrics
does not provide any way of shutting down the global goroutine.
2020-08-18 19:04:57 -04:00
Daniel Nephin 84642486b9 agent: extract dependency creation from New
With this change, Agent.New() accepts many of the dependencies instead
of creating them in New. Accepting fully constructed dependencies from
a constructor makes the type easier to test, and easier to change.

There are still a number of dependencies created in Start() which can
be addressed in a follow up.
2020-08-18 19:04:55 -04:00
Daniel Nephin 7078ca07fa config: Move remote-script-checks warning to config
Previously it was done in Agent.Start, but it can be done much earlier
2020-08-17 17:39:49 -04:00
Daniel Nephin a0dc4222b6 config: move NodeName validation to config validation
Previsouly it was done in Agent.Start, which is much later then it needs to be.

The new 'dns' package was required, because otherwise there would be an
import cycle. In the future we should move more of the dns server into
the dns package.
2020-08-17 17:25:02 -04:00
Daniel Nephin 647236bb17
Merge pull request #8515 from hashicorp/dnephin/unexport-testing-shims
config: unexport fields and resolve TODOs in config.Builder
2020-08-17 16:03:07 -04:00
Daniel Nephin 8d35e37b3c testing: Remove all the defer os.Removeall
Now that testutil uses t.Cleanup to remove the directory the caller no longer has to manage
the removal
2020-08-14 19:58:53 -04:00