This upgrades hcl2 library dependency to pick up
https://github.com/hashicorp/hcl2/pull/113 .
Prior to this change, parsing and decoding array attributes containing
invalid errors (e.g. references to unknown variables) are silently
dropped, with `cty.Unknown` being assigned to the bad element. Rather
than showing a type/meaningful error from hcl2, we get a very decrypted
error message from msgpack layer trying to handle `cty.unknown`.
This ensures that we propagate diagnostics correctly and report
meaningful errors to users.
Fixes https://github.com/hashicorp/nomad/issues/5694
Fixes https://github.com/hashicorp/nomad/issues/5680
Our testing so far indicates that ugorji/go/codec maintains backward
compatiblity with the version we are using now, for purposes of Nomad
serialization.
Using latest ugorji/go allows us to get back to using upstream library,
get get the optimizations benefits in RPC paths (including code
generation optimizations).
ugorji/go introduced two significant changes:
* time binary format in debb8e2d2e. Setting `h.BasicHandle.TimeNotBuiltin = true` restores old behavior
* ugorji/go started honoring `json` tag as well:
v1.1.4 is the latest but has a bug in handling RawString that's fixed in
d09a80c1e0
.
* client/metrics: modified metrics to use (updated) client copy of allocation instead of (unupdated) server copy
* updated armon/go-metrics to address race condition in DisplayMetrics
* Divest api/ package of deps elsewhere in the nomad repo.
This will allow making api/ a module without then pulling in the
external repo, leading to a package name conflict.
This required some migration of tests to an apitests/ folder (can be
moved anywhere as it has no deps on it). It also required some
duplication of code, notably some test helpers from api/ -> apitests/
and part (but not all) of testutil/ -> api/testutil/.
Once there's more separation and an e.g. sdk/ folder those can be
removed in favor of a dep on the sdk/ folder, provided the sdk/ folder
doesn't depend on api/ or /.
* Also remove consul dep from api/ package
* Fix stupid linters
* Some restructuring
* CVE-2019-5736: Update libcontainer depedencies
Libcontainer is vulnerable to a runc container breakout, that was
reported as CVE-2019-5736[1]. Upgrading vendored libcontainer with the fix.
The runc changes are captured in 369b920277 .
[1] https://seclists.org/oss-sec/2019/q1/119
Previously used `github.com/shirou/gopsutil`[1], used some GPL code [2].
This was somewhat unintentional, and was addressed later [3].
Due to being late in the cycle of Nomad release when this is noticed,
and time elapsed since we updated the dependency, we want to be
conservative in our package updates.
As such, we opted to go with forking the repo to use the previously used
version with the GPL removal code commit, done in [4].
[1] 5776ff9c7c
[2] 5776ff9c7c/host/include/smc.c
[3] c95755e4bc
[4] 62d5761ddb
