Makefile: cleanups for newer versions of Go

Go 1.9 removed "./..." matching the vendor directory while Go 1.10 added
build and test caching. This means we no longer need to grep out
vendored matches (except for golint which doesn't implement the same
behavior), and we no longer need to pre-build packages with "go build -i".

https://golang.org/doc/go1.9#vendor-dotdotdot
https://golang.org/doc/go1.10#build

Go 1.9 removed "./..." matching the vendor directory while Go 1.10 added
build and test caching. This means we no longer need to grep out
vendored matches (except for golint which doesn't implement the same
behavior), and we no longer need to pre-build packages with "go build -i".

https://golang.org/doc/go1.9#vendor-dotdotdot
https://golang.org/doc/go1.10#build

Migrate to go modules

bump lib/pq

taken from @vito's #1342.

Revert "retry on serialization errors"

This will come back, as outline here: https://github.com/dexidp/dex/pull/1356#issuecomment-442523779

Extend the API with a function which updates the client configuration

Kubernetes docs: clarify steps around use/creation of TLS assets.

LDAP connector - Document that 'DN' must be in capitals

Kubernetes example: Add RBAC resources and serviceAccount to YAML manifest, remove some references to deprecated TPR approach

retry on serialization errors

storage: nuke standup scripts, adapt dev-integration-test docs

prior to this change, many of the functions in the ExecTx callback would
wrap the error before returning it. this made it impossible to check
for the error code.

instead, the error wrapping has been moved to be external to the
`ExecTx` callback, so that the error code can be checked and
serialization failures can be retried.

also use a context for the rollback, which is a bit cleaner since it
only results in one 'defer', rather than N from the loop

Signed-off-by: Stephan Renatus <srenatus@chef.io>

Signed-off-by: Stephan Renatus <srenatus@chef.io>

Signed-off-by: Stephan Renatus <srenatus@chef.io>

Signed-off-by: Stephan Renatus <srenatus@chef.io>

Signed-off-by: Stephan Renatus <srenatus@chef.io>

pg: support host:port for backwards-compatibility

Add 'both' option to use team name AND slug in TeamNameField

This allows the connector to be configured with both so that both team names and slugs can be returned in the groups. This makes configuring teams in an application a bit more foolproof; we would often have confusion over whether the team name or slug should be given by the user, so it's easier to just allow both, since collisions shouldn't be possible anyway.

this will result in both the team name *and* the team slug being
returned for each team, allowing a bit more flexibility in auth
validation.
Signed-off-by: Topher Bullock <tbullock@pivotal.io>
Signed-off-by: Alex Suraci <suraci.alex@gmail.com>

Use pq connection parameters instead of URLs for postgres connections

This enables the use of socket paths like /var/run/postgresql for the 'host' instead of requiring TCP. Also, we know allow using a non-default port.

otherwise it's impossible to use a Unix socket, as the path gets escaped
awkwardly.
Signed-off-by: Ciro S. Costa <cscosta@pivotal.io>
Signed-off-by: Alex Suraci <suraci.alex@gmail.com>

Add config to explicitly enable loading all github groups

Follow-up for #1102.