Fails to upgrade from 5 to 6

[yuhaoju]

Output of the info page (if this is a bug)

sudo service datadog-agent status
● datadog-agent.service - "Datadog Agent"
   Loaded: loaded (/lib/systemd/system/datadog-agent.service; enabled; vendor preset:
   Active: active (running) since Thu 2018-11-29 08:01:54 UTC; 1h 29min ago
 Main PID: 1406 (supervisord)
    Tasks: 14
   Memory: 178.9M
      CPU: 47.883s
   CGroup: /system.slice/datadog-agent.service
           ├─1406 /opt/datadog-agent/embedded/bin/python /opt/datadog-agent/bin/superv
           ├─1446 /opt/datadog-agent/bin/trace-agent
           ├─1447 /opt/datadog-agent/embedded/bin/python /opt/datadog-agent/agent/ddag
           ├─1448 /opt/datadog-agent/embedded/bin/python /opt/datadog-agent/agent/dogs
           └─1451 /opt/datadog-agent/embedded/bin/python /opt/datadog-agent/agent/agen

Nov 29 08:01:52 web-2 systemd[1]: Starting "Datadog Agent"...
Nov 29 08:01:54 web-2 systemd[1]: Started "Datadog Agent".
Nov 29 08:01:57 web-2 dd.forwarder[1447]: INFO (ddagent.py:146): Done with custom emit

Describe what happened:
Can't fetch version 6 (datadog-agent is already the newest version (1:5.29.0-1)).

Part of the output:

* Installing the Datadog Agent package

Ign:1 https://apt.datadoghq.com stable InRelease
Hit:2 https://apt.datadoghq.com stable Release
Reading package lists...
Reading package lists...
Building dependency tree...
Reading state information...
datadog-agent is already the newest version (1:5.29.0-1).
...
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
W: Duplicate sources.list entry https://apt.datadoghq.com stable Release
sudo: datadog-agent: command not found
Automatic import failed, you can still try to manually run: datadog-agent import /etc/dd-agent /etc/datadog-agent

cp: cannot stat '/etc/datadog-agent/datadog.yaml.example': No such file or directory

Describe what you expected:
Upgrade to agent 6.

Steps to reproduce the issue:
Execute:

DD_UPGRADE=true bash -c "$(curl -L https://raw.githubusercontent.com/DataDog/datadog-agent/master/cmd/agent/install_script.sh)"

Additional environment details (Operating System, Cloud provider, etc):

NAME="Ubuntu"
VERSION="16.04.5 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.5 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

[olivielpeau]

Hi @yuhaoju, thanks for reporting this issue.

It looks like the script failed to upgrade your Agent because of this line:

W: Duplicate sources.list entry https://apt.datadoghq.com stable Release

The script assumes the Agent 5 apt repo is defined in /etc/apt/sources.list.d/datadog.list and overrides that file to make it point to the Agent 6 apt repo, but apparently that's not the case on your environment.

Could you check your apt entries in the /etc/apt/sources.list and /etc/apt/sources.list.d/*.list files, remove any Datadog-related entries, and try to run the script again?

[yuhaoju]

@olivielpeau Hi, I removed datadog relevant .list files and it solved the problem, thank you!

FYI the files are:

/etc/apt/sources.list.d/datadog.list
/etc/apt/sources.list.d/apt_datadoghq_com.list

[olivielpeau]

Great, thanks for confirming this worked @yuhaoju 👍