logstash charm fail during install due to apt archive error

[Sandor Zeestraten]

# Versions
juju 2.3.2
logstash charm rev. 3

# Issue
The latest logstash charm fails during install due to an apt archive error.

# Error
2018-02-01 09:06:40 DEBUG java-relation-changed Err:3 https://artifacts.elastic.co/packages/5.x/apt stable/main amd64 Packages
2018-02-01 09:06:40 DEBUG java-relation-changed Received HTTP code 403 from proxy after CONNECT
2018-02-01 09:06:40 DEBUG java-relation-changed Ign:4 https://artifacts.elastic.co/packages/5.x/apt stable/main all Packages
2018-02-01 09:06:40 DEBUG java-relation-changed Ign:5 https://artifacts.elastic.co/packages/5.x/apt stable/main Translation-en
2018-02-01 09:06:40 DEBUG java-relation-changed Hit:6 http://archive.ubuntu.com/ubuntu xenial InRelease
2018-02-01 09:06:40 DEBUG java-relation-changed Hit:7 http://security.ubuntu.com/ubuntu xenial-security InRelease
2018-02-01 09:06:40 DEBUG java-relation-changed Hit:8 http://archive.ubuntu.com/ubuntu xenial-updates InRelease
2018-02-01 09:06:40 DEBUG java-relation-changed Hit:9 http://archive.ubuntu.com/ubuntu xenial-backports InRelease
2018-02-01 09:06:43 DEBUG java-relation-changed Reading package lists...
2018-02-01 09:06:43 DEBUG java-relation-changed W: The repository 'https://artifacts.elastic.co/packages/5.x/apt stable Release' does not have a Release file.
2018-02-01 09:06:43 DEBUG java-relation-changed E: Failed to fetch https://artifacts.elastic.co/packages/5.x/apt/dists/stable/main/binary-amd64/Packages Received HTTP code 403 from proxy after CONNECT
2018-02-01 09:06:43 DEBUG java-relation-changed E: Some index files failed to download. They have been ignored, or old ones used instead.
2018-02-01 09:06:43 INFO juju-log java:0: Installing logstash with options: ['--option=Dpkg::Options::=--force-confold']
2018-02-01 09:06:43 DEBUG java-relation-changed Reading package lists...
2018-02-01 09:06:43 DEBUG java-relation-changed Building dependency tree...
2018-02-01 09:06:43 DEBUG java-relation-changed Reading state information...
2018-02-01 09:06:43 DEBUG java-relation-changed E: Unable to locate package logstash
2018-02-01 09:06:43 INFO juju-log java:0: Couldn't acquire DPKG lock. Will retry in 10 seconds

# Logs
Unit log from logstash-3: https://paste.ubuntu.com/26499618/

[Sandor Zeestraten (szeestraten)]

My apologies. Same issue as in #1746689