Improve debug logging

What does this MR do?

Improve debug logging

Why was this MR needed?

Before:

DEBU[2021-01-28T11:20:29+01:00] Dialing "10.221.188.112:8822" failed: %!w(*net.OpError=&{dial tcp <nil> 0xc0001c3b90 0x1ec4d00})  PID=59164 command=prepare_exec vm-name=runner-manual-qa-1611829202

After:

DEBU[2021-01-28T11:23:07+01:00] Dialing "10.221.188.112:8822" failed          PID=59552 command=prepare_exec error="dial tcp 10.221.188.112:8822: connect: connection refused" vm-name=runner-manual-qa-1611829382
DEBU[2021-01-28T11:23:09+01:00] Dialing "10.221.188.112:8822" failed          PID=59552 command=prepare_exec error="dial tcp 10.221.188.112:8822: i/o timeout" vm-name=runner-manual-qa-1611829382

What's the best way to test this MR?

Get your orka-cli token:

cat ~/.config/configstore/orka-cli.json | jq -r ".token"

Fill out your config.toml

Provider = "orka"
OS = "macos"

VMTag = "manual-qa"

[Orka]
BaseImage = "runner-12-20201203.img"
Cores = 3
Endpoint = "http://10.221.188.100"
Token = "token from orka-cli"

Connect to the VPN using the script in the orka repository:

path-to-orka/scripts/vpn.sh

Run:

 CUSTOM_ENV_CI_JOB_ID=$(date +%s) BUILD_FAILURE_EXIT_CODE=1 SYSTEM_FAILURE_EXIT_CODE=2 bash -c "go run cmd/autoscaler/main.go --debug custom prepare && go run cmd/autoscaler/main.go custom cleanup"

What are the relevant issue numbers?

closes #64 (closed)