This ensures that if someone does include some extension Consul does not currently make use of, that extension is actually usable. Without linking these envoy protobufs into the main binary it can't round trip the escape hatches to send them down to envoy.
Whenenver the go-control-plane library is upgraded next we just have to re-run 'make envoy-library'.
This fixes an issue where leaf certificates issued in primary
datacenters using Vault as a Connect CA would be reissued very
frequently (every ~20 seconds) because the logic meant to detect root
rotation was errantly triggering.
The hash of the rootCA was being compared against a hash of the
intermediateCA and always failing. This doesn't apply to the Consul
built-in CA provider because there is no intermediate in use in the
primary DC.
This is reminiscent of #6513
* update bindata on ui-v2/ changes
* Revert "Remove GIT_SHA environment variable"
This reverts commit f620f9aefd41362ce76c3a8e0f4addf402ee0ca2.
* Revert "Hardcode in an app version for ember-cli-app-version"
This reverts commit 5ae493d79b34ef2143d78a44c21a63623140bba8.
* revert modtime change in #8712
* add check for bindata_assetfs changes
* Remove GIT_SHA environment variable
* Hardcode in an app version for ember-cli-app-version
* change ' to " for CONSUL_UI_SETTINGS_PLACEHOLDER
Co-authored-by: John Cowen <jcowen@hashicorp.com>
Co-authored-by: hashicorp-ci <hashicorp-ci@users.noreply.github.com>
* test/integration: only run against 1 envoy version
These tests are slow enough that it seems unlikely that anyone is
running multiple versions locally. If someone wants to, a for loop
outside of run_test.sh should do the right thing.
Remove unused vars.
* Remove logic to iterate over test cases, run a single case
* Add a golang runner for integration tests
* Use build tags for envoy integration tests
And add junit-xml report
To reduce the chance of some tests not being run because it does not
match the regex passed to '-run'.
Also document why some tests are allowed to be skipped on CI.
Using golangci-lint has a number of advantages:
- adding new linters becomes much easier, its a couple lines of yaml config
instead of more bash scripting
- it enables whitelisting of issues using inline comments or regex
- when running multiple linters less work is done. The parsed source can be reused
by multiple linters
- linters are run in parallel to reduce CI runtime.
- You can no longer cross submodule boundaries with ./... in go
subcommands like `go list` or `go test`. The makefile and CI scripts
were updated accordingly.
- Also of note: `go mod vendor` now omits things build ignored.
* vault-ca-provider: add make target and CI test-integration job for /agent/connect/ca/ Vault Provider tests
* load env vars in the vault-ca-provider ci job
* add checkout task, see if we need to attach workspace or not
* ci: remove vault dependency from go-test job to ensure we only run the vault-provider tests in their job
* ci: fix from RB and Alvin code review, add mod cache after checkout
* ci: add CI context to make target and store test results
* ci: fix whitespace
* ci: create test results directory before we try to write to it
This only works so long as we use simplistic protobuf types. Constructs such as oneof or Any types that require type annotations for decoding properly will fail hard but that is by design. If/when we want to use any of that we will probably need to consider a v2 API.
* Add JSON and Binary Marshaler Generators for Protobuf Types
* Generate files with the correct version of gogo/protobuf
I have pinned the version in the makefile so when you run make tools you get the right version. This pulls the version out of go.mod so it should remain up to date.
The version at the time of this commit we are using is v1.2.1
* Fixup some shell output
* Update how we determine the version of gogo
This just greps the go.mod file instead of expecting the go mod cache to already be present
* Fixup vendoring and remove no longer needed json encoder functions
* Add build system support for protobuf generation
This is done generically so that we don’t have to keep updating the makefile to add another proto generation.
Note: anything not in the vendor directory and with a .proto extension will be run through protoc if the corresponding namespace.pb.go file is not up to date.
If you want to rebuild just a single proto file you can do so with: make proto-rebuild PROTOFILES=<list of proto files to rebuild>
Providing the PROTOFILES var will override the default behavior of finding all the .proto files.
* Start adding types to the agent/proto package
These will be needed for some other work and are by no means comprehensive.
* Add ability to resolve/fixup the agentpb.ACLLinks structure in the state store.
* Use protobuf marshalling of raft requests instead of msgpack for protoc generated types.
This does not change any encoding of existing types.
* Removed structs package automatically encoding with protobuf marshalling
Instead the caller of raftApply that wants to opt-in to protobuf encoding will have to call `raftApplyProtobuf`
* Run update-vendor to fixup modules.txt
Nothing changed as far as dependencies go but the ordering of modules in that file depends on the time they are first seen and its not alphabetical.
* Rename some things and implement the structs.RPCInfo interface bits
agentpb.QueryOptions and agentpb.WriteRequest implement 3 of the 4 RPCInfo funcs and the new TargetDatacenter message type implements the fourth.
* Use the right encoding function.
* Renamed agent/proto package to agent/agentpb to prevent package name conflicts
* Update modules.txt to fix ordering
* Change blockingQuery to take in interfaces for the query options and meta
* Add %T to error output.
* Add/Update some comments
* Implement the test-docker make target
Running tests within docker allows us to resource constrain them better to not take over our systems. Additionally it allows us to run the tests on linux instead of the host OS which often times is macOS.
* Use GOMAXPROCS instead of -p
* Add a comment about docker cpus
* Add support for HTTP proxy listeners
* Add customizable bootstrap configuration options
* Debug logging for xDS AuthZ
* Add Envoy Integration test suite with basic test coverage
* Add envoy command tests to cover new cases
* Add tracing integration test
* Add gRPC support WIP
* Merged changes from master Docker. get CI integration to work with same Dockerfile now
* Make docker build optional for integration
* Enable integration tests again!
* http2 and grpc integration tests and fixes
* Fix up command config tests
* Store all container logs as artifacts in circle on fail
* Add retries to outer part of stats measurements as we keep missing them in CI
* Only dump logs on failing cases
* Fix typos from code review
* Review tidying and make tests pass again
* Add debug logs to exec test.
* Fix legit test failure caused by upstream rename in envoy config
* Attempt to reduce cases of bad TLS handshake in CI integration tests
* bring up the right service
* Add prometheus integration test
* Add test for denied AuthZ both HTTP and TCP
* Try ANSI term for Circle
* Move the watch package into the api module
It was already just a thin wrapper around the API anyways. The biggest change was to the testing. Instead of using a test agent directly from the agent package it now uses the binary on the PATH just like the other API tests.
The other big changes were to fix up the connect based watch tests so that we didn’t need to pull in the connect package (and therefore all of Consul)
* Docker based builds can now use the module cache
* Simplify building the consul-dev docker image.
* Make sure to pull the latest consul image.
* Allow selecting base image version for the dev image
* build: use only version tags in version output now api is tagged too
Fixes#5621
Since we now have api package tags, our build tooling was picking up api tag when working out version to bake into builds.
This fixes it by restricting to only tags that start with `v`.
Before:
```
$ make version
Version: 1.4.4
Version + release: 1.4.4-dev
Version + git: api/v1.0.1-90-g3ce60db0c
Version + release + git: api/v1.0.1-90-g3ce60db0c-dev (3ce60db0c)
```
After:
```
$ make version
Version: 1.4.4
Version + release: 1.4.4-dev
Version + git: v1.4.4-126-g3ce60db0c
Version + release + git: v1.4.4-126-g3ce60db0c-dev (3ce60db0c)
```
* Update GNUmakefile
This adds the `agent/connect/ca/plugin` library for consuming/serving Connect CA providers as [go-plugin](https://github.com/hashicorp/go-plugin) plugins. This **does not** wire this up in any way to Consul itself, so this will not enable using these plugins yet.
## Why?
We want to enable CA providers to be pluggable without modifying Consul so that any CA or PKI system can potentially back the Connect certificates. This CA system may also be used in the future for easier bootstrapping and internal cluster security.
### go-plugin
The benefit of `go-plugin` is that for the plugin consumer, the fact that the interface implementation is communicating over multi-process RPC is invisible. Internals of Consul will continue to just use `ca.Provider` interface implementations as if they're local. For plugin _authors_, they simply have to implement the interface. The network/transport/process management issues are handled by go-plugin itself.
The CA provider plugins support both `net/rpc` and gRPC transports. This enables easy authoring in any language. go-plugin handles the actual protocol handshake and connection. This is just a feature of go-plugin.
`go-plugin` is already in production use for years by Packer, Terraform, Nomad, Vault, and Sentinel. We've shown stability for both desktop and server-side software. It is very mature.
## Implementation Details
### `map[string]interface{}`
The `Configure` method passes a `map[string]interface{}`. This map contains only Go primitives and containers of primitives (no funcs, chans, etc.). For `net/rpc` we encode as-is using Gob. For gRPC we marshal to JSON and transmit as a `bytes` type. This is the same approach we take with Vault and other software.
Note that this is just the transport protocol, the end software views it fully decoded.
### `x509.Certificate` and `CertificateRequest`
We transmit the raw ASN.1 bytes and decode on the other side. Unit tests are verifying we get the same cert/csrs across the wire.
### Testing
`go-plugin` exposes test helpers that enable testing the full plugin RPC over real loopback network connections. We test all endpoints for success and error for both `net/rpc` and gRPC.
### Vendoring
This PR doesn't introduce vendoring for two reasons:
1. @banks's `f-envoy` branch introduces a lot of these and I didn't want conflict.
2. The library isn't actually used yet so it doesn't introduce compile-time errors (it does introduce test errors).
## Next Steps
With this in place, we need to figure out the proper way to actually hook these up to Consul, load them, etc. This discussion can happen elsewhere, since regardless of approach this plugin library implementation is the exact same.
This PR is almost a complete rewrite of the ACL system within Consul. It brings the features more in line with other HashiCorp products. Obviously there is quite a bit left to do here but most of it is related docs, testing and finishing the last few commands in the CLI. I will update the PR description and check off the todos as I finish them over the next few days/week.
Description
At a high level this PR is mainly to split ACL tokens from Policies and to split the concepts of Authorization from Identities. A lot of this PR is mostly just to support CRUD operations on ACLTokens and ACLPolicies. These in and of themselves are not particularly interesting. The bigger conceptual changes are in how tokens get resolved, how backwards compatibility is handled and the separation of policy from identity which could lead the way to allowing for alternative identity providers.
On the surface and with a new cluster the ACL system will look very similar to that of Nomads. Both have tokens and policies. Both have local tokens. The ACL management APIs for both are very similar. I even ripped off Nomad's ACL bootstrap resetting procedure. There are a few key differences though.
Nomad requires token and policy replication where Consul only requires policy replication with token replication being opt-in. In Consul local tokens only work with token replication being enabled though.
All policies in Nomad are globally applicable. In Consul all policies are stored and replicated globally but can be scoped to a subset of the datacenters. This allows for more granular access management.
Unlike Nomad, Consul has legacy baggage in the form of the original ACL system. The ramifications of this are:
A server running the new system must still support other clients using the legacy system.
A client running the new system must be able to use the legacy RPCs when the servers in its datacenter are running the legacy system.
The primary ACL DC's servers running in legacy mode needs to be a gate that keeps everything else in the entire multi-DC cluster running in legacy mode.
So not only does this PR implement the new ACL system but has a legacy mode built in for when the cluster isn't ready for new ACLs. Also detecting that new ACLs can be used is automatic and requires no configuration on the part of administrators. This process is detailed more in the "Transitioning from Legacy to New ACL Mode" section below.
* Add function to wait for serfHealth in api tests
* Disable connect when creating semaphore test clients
* Wait for serfHealth when creating sessions in their tests
* Add helper functions to create lock/semaphore sessions without checks
* Log passing tests to prevent timeout in Travis due to lack of output
- Improve resilience of testrpc.WaitForLeader()
- Add additionall retry to CI
- Increase "go test" timeout to 8m
- Add wait for cluster leader to several tests in the agent package
- Add retry to some tests in the api and command packages
Improvements:
- More modular
- Building within docker doesn’t use volumes so can be run on a remote docker host
- Build containers include only minimal context so they only rarely need to be rebuilt and most of the time can be used from the cache.
- 3 build containers instead of 1. One based off of the upstream golang containers for building go stuff with all our required GOTOOLS installed. One like the old container based off ubuntu bionic for building the old UI (didn’t bother creating a much better container as this shouldn’t be needed once we completely remove the legacy UI). One for building the new UI. Its alpine based with all the node, ember, yarn stuff installed.
- Top level makefile has the ability to do a container based build without running make dist
- Can build for arbitrary platforms at the top level using: make consul-docker XC_OS=… XC_ARCH=…
- overridable functionality to allow for customizations to the enterprise build (like to generate multiple binaries)
- unified how we compile our go. always use gox even for dev-builds or rather always use the tooling around our scripts which will make sure things get copied to the correct places throughout the filesystem.
* Move settings to use the same service/route API as the rest of the app
* Put some ideas down for unit testing on adapters
* Favour `Model` over `Entity`
* Move away from using `reopen` to using Mixins
* Amend messages, comment/document some usage
* Make sure the returns are consistent in normalizePayload, also
Add some todo's in to remind me to think consider this further at a
later date. For example, is normalizePayload to be a hook or an
overridable method
* Start stripping back the HTML to semantics
* Use a variable rather than chaining
* Remove unused helpers
* Start picking through the new designs, start with listing pages
* First draft HTML for every page
* Making progress on the CSS
* Keep plugging away at the catalog css
* Looking at scrolling
* Wire up filtering
* Sort out filter counting, more or less done a few outstanding
* Start knocking the forms into shape
* Add in codemirror
* Keep moving forwards with the form like layouts
* Start looking at ACL editing page, add footer in
* Pull the filters back in, look at an autoresizer for scroll views
* First draft toggles
* 2nd draft healthcheck icons
* Tweak node healthcheck icons
* Looking at healthcheck detail icons
* Tweak the filter-bar and add selections to the in content tabs
* Add ACL create, pill-like acl type highlight
* Tweaking the main nav some more
* Working on the filter-bar and freetext-filter
* Masonry layout
* Stick with `checks` instead of healthy/unhealthy
* Fix up the filter numbers/counts
* Use the thead for a measure
* First draft tomography back in
* First draft DC dropdown
* Add a temporary create buttong to kv's
* Move KV and ACL to use a create page
* Move tags
* Run through old tests
* Injectable server
* Start adding test attributes
* Add some page objects
* More test attributes and pages
* Acl filter objects
* Add a page.. page object
* Clickable items in lists
* Add rest/spread babel plugin, remove mirage for now
* Add fix for ember-collection
* Keep track of acl filters
* ember-cli-page-object
* ember-test-selectors
* ui: update version of ui compile deps
* Update static assets
* Centralize radiogroup helper
* Rejig KV's and begin to clean it up
* Work around lack of Tags for the moment..
* Some little css tweaks and start to remove possibles
* Working on the dc page and incidentals
1. Sort the datacenter-picker list
2. Add a selected state to the datacenter-picker
3. Make dc an {Name: dc}
4. Add an env helper to get to 'env vars' from within templates
* Click outside stuff for the datacenter-picker, is-active on nav
* Make sure the dropdown CTA can be active
* Bump ember add pluralize helper
* Little try at sass based custom queries
* Rejig tablular collection so it deals with resizing, actions
1. WIP: start building actions dropdowns
2. Move tabular collection to deal with resizing to rule out differences
* First draft actions dropdowns
* Add ports, selectable IP's
* Flash messages, plus general cleanup/consistency
1. Add ember-cli-flash for flash messages
2. Move everything to get() instead of item.get
3. Spotted a few things that weren't consistent
* DOn't go lower than zero
* First draft vertical menu
* Missed a get, tweak dropmenu tick
* Big cleanup
1. this.get(), this.set() > get(), set()
2. assign > {...{}, ...{}}
3. Seperator > separator
* WIP: settings
* Moved things into a ui-v2 folder
* Decide on a way to do the settings page whilst maintaining the url + dc's
* Start some error pages
* Remove base64 polyfill
* Tie in settings, fix atob bug, tweak layout css
* Centralize confirmations into a component
* Allow switching between the old and new UI with the CONSUL_UI_BETA env var
Currently all the assets are packaged into a single AssetFS and a prefix is configured to switch between the two.
* Attempt at some updates to integrate the v2 ui build into the main infrastructure
* Add redirect to index.html for unknown paths
* Allow redictor to /index.html for new ui when using -ui-dir
* Take ACLs to the correct place on save
* First pass breadcrumbs
* Remove datacenter selector on the index page
* Tweak overall layout
* Make buttons 'resets'
* Tweak last DC stuff
* Validations plus kv keyname viewing tweaks
* Pull sessions back in
* Tweak the env vars to be more reusable
* Move isAnon to the view
* No items and disabled acl css
* ACL and KV details
1. Unauthorized page
2. Make sure the ACL is always selected when it needs it
3. Check record deletion with a changeset
* Few more acl tweaks/corrections
* Add no items view to node > services
* Tags for node > services
* Make sure we have tags
* Fix up the labels on the tomography graph
* Add node link (agent) to kv sessions
* Duplicate up `create` for KV 'root creation'
* Safety check for health checks
* Fix up the grids
* Truncate td a's, fix kv columns
* Watch for spaces in KV id's
* Move actions to their own mixins for now at least
* Link reset to settings incase I want to type it in
* Tweak error page
* Cleanup healthcheck icons in service listing
* Centralize errors and make getting back easier
* Nice numbers
* Compact buttons
* Some incidental css cleanups
* Use 'Key / Value' for root
* Tweak tomography layout
* Fix single healthcheck unhealthy resource
* Get loading screen ready
* Fix healthy healthcheck tick
* Everything in header starts white
* First draft loader
* Refactor the entire backend to use proper unique keys, plus..
1. Make unique keys form dc + slug (uid)
2. Fun with errors...
* Tweak header colors
* Add noopener noreferrer to external links
* Add supers to setupController
* Implement cloning, using ember-data...
* Move the more expensive down the switch order
* First draft empty record cleanup..
* Add the cusomt store test
* Temporarily use the htmlSafe prototype to remove the console warning
* Encode hashes in urls
* Go back to using title for errors for now
* Start removing unused bulma
* Lint
* WIP: Start looking at failing tests
* Remove single redirect test
* Finish off error message styling
* Add full ember-data cache invalidation to avoid stale data...
* Add uncolorable warning icons
* More info icon
* Rearrange single service, plus tag printing
* Logo
* No quotes
* Add a simple startup logo
* Tweak healthcheck statuses
* Fix border-color for healthchecks
* Tweak node tabs
* Catch 401 ACL errors and rethrow with the provided error message
* Remove old acl unauth and error routes
* Missed a super
* Make 'All' refer to number of checks, not services
* Remove ember-resizer, add autoprefixer
* Don't show tomography if its not worth it, viewify it more also
* Little model cleanup
* Chevrons
* Find a way to reliably set the class of html from the view
* Consistent html
* Make sure session id's are visible as long as possible
* Fix single service check count
* Add filters and searchs to the query string
* Don't remember the selected tab
* Change text
* Eror tweaking
* Use chevrons on all breadcrumbs even in kv's
* Clean up a file
* Tweak some messaging
* Makesure the footer overlays whats in the page
* Tweak KV errors
* Move json toggle over to the right
* feedback-dialog along with copy buttons
* Better confirmation dialogs
* Add git sha comment
* Same title as old UI
* Allow defaults
* Make sure value is a string
* WIP: Scrolling dropdowns/confirmations
* Add to kv's
* Remove set
* First pass trace
* Better table rows
* Pull over the hashi code editor styles
* Editor tweaks
* Responsive tabs
* Add number formatting to tomography
* Review whats left todo
* Lint
* Add a coordinate ember data triplet
* Bump in a v2.0.0
* Update old tests
* Get coverage working again
* Make sure query keys are also encoded
* Don't test console.error
* Unit test some more utils
* Tweak the size of the tabular collections
* Clean up gitignore
* Fix copy button rollovers
* Get healthcheck 'icon icons' onto the text baseline
* Tweak healthcheck padding and alignment
* Make sure commas kick in in rtt, probably never get to that
* Improve vertical menu
* Tweak dropdown active state to not have a bg
* Tweak paddings
* Search entire string not just 'startsWith'
* Button states
* Most buttons have 1px border
* More button tweaks
* You can only view kv folders
* CSS cleanup reduction
* Form input states and little cleanup
* More CSS reduction
* Sort checks by importance
* Fix click outside on datacenter picker
* Make sure table th's also auto calculate properly
* Make sure `json` isn't remembered in KV editing
* Fix recursive deletion in KV's
* Centralize size
* Catch updateRecord
* Don't double envode
* model > item consistency
* Action loading and ACL tweaks
* Add settings dependencies to acl tests
* Better loading
* utf-8 base64 encode/decode
* Don't hang off a prototype for htmlSafe
* Missing base64 files...
* Get atob/btoa polyfill right
* Shadowy rollovers
* Disabled button styling for primaries
* autofocuses only onload for now
* Fix footer centering
* Beginning of 'notices'
* Remove the isLocked disabling as we are letting you do what the API does
* Don't forget the documentation link for sessions
* Updates are more likely
* Use exported constant
* Dont export redirectFS and a few other PR updates
* Remove the old bootstrap config which was used for the old UI skin
* Use curlies for multiple properties
This was reported in #3868. We make a HashiCorp hard fork of the
jteeuwen/go-bindata hard fork that was replaced and diffed the code
against a Dec 1, 2015 copy of the original repository we had as a
cross-check of that hard fork.
This replaces references to jteeuwen/go-bindata to point to the
HashiCorp fork.
Fixes#3868
This patch removes the porter tool which hands out free ports from a
given range with a library which does the same thing. The challenge for
acquiring free ports in concurrent go test runs is that go packages are
tested concurrently and run in separate processes. There has to be some
inter-process synchronization in preventing processes allocating the
same ports.
freeport allocates blocks of ports from a range expected to be not in
heavy use and implements a system-wide mutex by binding to the first
port of that block for the lifetime of the application. Ports are then
provided sequentially from that block and are tested on localhost before
being returned as available.
* new config parser for agent
This patch implements a new config parser for the consul agent which
makes the following changes to the previous implementation:
* add HCL support
* all configuration fragments in tests and for default config are
expressed as HCL fragments
* HCL fragments can be provided on the command line so that they
can eventually replace the command line flags.
* HCL/JSON fragments are parsed into a temporary Config structure
which can be merged using reflection (all values are pointers).
The existing merge logic of overwrite for values and append
for slices has been preserved.
* A single builder process generates a typed runtime configuration
for the agent.
The new implementation is more strict and fails in the builder process
if no valid runtime configuration can be generated. Therefore,
additional validations in other parts of the code should be removed.
The builder also pre-computes all required network addresses so that no
address/port magic should be required where the configuration is used
and should therefore be removed.
* Upgrade github.com/hashicorp/hcl to support int64
* improve error messages
* fix directory permission test
* Fix rtt test
* Fix ForceLeave test
* Skip performance test for now until we know what to do
* Update github.com/hashicorp/memberlist to update log prefix
* Make memberlist use the default logger
* improve config error handling
* do not fail on non-existing data-dir
* experiment with non-uniform timeouts to get a handle on stalled leader elections
* Run tests for packages separately to eliminate the spurious port conflicts
* refactor private address detection and unify approach for ipv4 and ipv6.
Fixes#2825
* do not allow unix sockets for DNS
* improve bind and advertise addr error handling
* go through builder using test coverage
* minimal update to the docs
* more coverage tests fixed
* more tests
* fix makefile
* cleanup
* fix port conflicts with external port server 'porter'
* stop test server on error
* do not run api test that change global ENV concurrently with the other tests
* Run remaining api tests concurrently
* no need for retry with the port number service
* monkey patch race condition in go-sockaddr until we understand why that fails
* monkey patch hcl decoder race condidtion until we understand why that fails
* monkey patch spurious errors in strings.EqualFold from here
* add test for hcl decoder race condition. Run with go test -parallel 128
* Increase timeout again
* cleanup
* don't log port allocations by default
* use base command arg parsing to format help output properly
* handle -dc deprecation case in Build
* switch autopilot.max_trailing_logs to int
* remove duplicate test case
* remove unused methods
* remove comments about flag/config value inconsistencies
* switch got and want around since the error message was misleading.
* Removes a stray debug log.
* Removes a stray newline in imports.
* Fixes TestACL_Version8.
* Runs go fmt.
* Adds a default case for unknown address types.
* Reoders and reformats some imports.
* Adds some comments and fixes typos.
* Reorders imports.
* add unix socket support for dns later
* drop all deprecated flags and arguments
* fix wrong field name
* remove stray node-id file
* drop unnecessary patch section in test
* drop duplicate test
* add test for LeaveOnTerm and SkipLeaveOnInt in client mode
* drop "bla" and add clarifying comment for the test
* split up tests to support enterprise/non-enterprise tests
* drop raft multiplier and derive values during build phase
* sanitize runtime config reflectively and add test
* detect invalid config fields
* fix tests with invalid config fields
* use different values for wan sanitiziation test
* drop recursor in favor of recursors
* allow dns_config.udp_answer_limit to be zero
* make sure tests run on machines with multiple ips
* Fix failing tests in a few more places by providing a bind address in the test
* Gets rid of skipped TestAgent_CheckPerformanceSettings and adds case for builder.
* Add porter to server_test.go to make tests there less flaky
* go fmt
Build all packages together with a global timeout. Locally,
the tests pass within 40 sec. On travis, we complete within
3-4 min.
travis truncates the logs after 4MB which we are hitting so
show the relevant information first and then whatever is left.
