- Plesk for Linux
Docker installation in Plesk > Tools & Settings > Updates and Upgrades > Add/Remove Component fails with an error:
PLESK_INFO: Error: Failed to install or upgrade the extension 'Docker' (package: docker):
[2018-02-27 23:41:41] ERR [extension/docker] Execution of /opt/psa/admin/plib/modules/docker/scripts/post-install.php failed with exit code 1 and the output:
[2018-02-27 23:41:41] ERR [extension/docker] Execution installer has failed with exit code 1, stdout: , stderr: W: Failed to fetch http://autoinstall.plesk.com/ubuntu/PSA_17.5.3/dists/trusty/extras/binary-amd64/Packages Bad header line
E: Some index files failed to download. They have been ignored, or old ones used instead.
ERROR:root:Command '['apt-get', '-qq', 'update']' returned non-zero exit status 100
exit status 1
Following warning is displayed in Plesk > Docker afterwards if there are no Remote Docker additional license installed:
PLESK_WARN: Warning: Local Docker node is missing. Refer to this KB article to resolve this issue.
The ability to work with remote nodes is available only in the paid version of the extension. You can buy the extension here.
If the Remote Docker additional license is present on the server, following is displayed in Plesk > Docker:
Plesk is running in the Docker container and cannot start Docker daemon inside the container due to the Docker environment limitations.
Install Plesk directly on the server, supported by the Plesk Docker extension: Docker for Plesk, Requirements and Limitations, or use remote Docker server: How to connect remote Docker service to Plesk Onyx?