Feed the stdout and stderr of the Pilot subprocess into glog

[wallrj]

Fixes: #166
Release note:

NONE

[jetstack-ci-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
We suggest the following additional approver: wallrj

Assign the PR to them by writing /assign @wallrj in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these OWNERS Files:

• OWNERS

You can indicate your approval by writing /approve in a comment
You can cancel your approval by writing /approve cancel in a comment

[wallrj]

/test e2e

[wallrj]

/test e2e

[wallrj]

/test e2e

[wallrj]

/test e2e

[wallrj]

/test e2e

[jetstack-ci-bot]

@wallrj PR needs rebase

[jetstack-ci-bot]

@wallrj PR needs rebase

[jetstack-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
We suggest the following additional approver: munnerz

Assign the PR to them by writing /assign @munnerz in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these OWNERS Files:

• OWNERS

You can indicate your approval by writing /approve in a comment
You can cancel your approval by writing /approve cancel in a comment

[wallrj]

e.g.

I0124 14:42:32.136] I0124 14:40:41.104741       1 process.go:63] changed ownership of '/cassandra_data/data' from root to cassandra
I0124 14:42:32.136] I0124 14:40:41.104942       1 process.go:63] changed ownership of '/cassandra_data' from root to cassandra
I0124 14:42:32.136] I0124 14:40:41.104991       1 process.go:63] changed ownership of '/etc/cassandra/cassandra-env.sh' from root to cassandra
I0124 14:42:32.136] I0124 14:40:41.104999       1 process.go:63] changed ownership of '/etc/cassandra/cassandra.yaml' from root to cassandra
I0124 14:42:32.137] I0124 14:40:41.105004       1 process.go:63] changed ownership of '/etc/cassandra/jvm.options' from root to cassandra
I0124 14:42:32.137] I0124 14:40:41.105009       1 process.go:63] changed ownership of '/etc/cassandra/logback.xml' from root to cassandra
I0124 14:42:32.137] I0124 14:40:41.105015       1 process.go:63] changed ownership of '/etc/cassandra/cassandra-rackdc.properties' from root to cassandra
I0124 14:42:32.137] I0124 14:40:41.105109       1 process.go:63] changed ownership of '/etc/cassandra' from root to cassandra
I0124 14:42:32.137] E0124 14:40:42.623414       1 process.go:80] OpenJDK 64-Bit Server VM warning: Cannot open file /usr/local/apache-cassandra-3.9/logs/gc.log due to No such file or directory
I0124 14:42:32.137] E0124 14:40:42.623528       1 process.go:80] 

https://jetstack-build-infra.appspot.com/build/jetstack-logs/pr-logs/pull/jetstack_navigator/167/navigator-e2e-v1-9/144/?log#log

[jetstack-ci-bot]

@wallrj PR needs rebase

[munnerz]

Digging this old PR back up...

We've discussed making it easier to distinguish app logs from Pilot itself - I definitely think we should do that, however I am not sure if pushing those logs into glog like this helps that goal.

@cehoffman what are your thoughts?
We could send Pilot logs to a file instead, or alternatively give all non-DB logs some form of prefix.

In 'optimal' operating conditions, Pilot should be pretty silent. I think right now Navigator sets the --v level to something like 6 on each Pilot, which causes them to be very chatty. We can reduce that and hopefully that'll help short term?