Cumulocity Microservice file problem

[alexis-sachin]

Product : Cumulocity Microservices

Problem : When i am trying to upload microservice zip file in microservice area under admin tab it is giving me the error [ unable to untar the tar file ].

[Stefan_Witschel]

I think you are not uploading a proper microservice archive. Which binary did you upload? And how did you build it (if built by yourself)?

[alexis-sachin]

Hi stefan,
The microservice consist of mainly 4 files :

1. flask based microservice.
2. cumulocity manifest file
3. Docker file
4. requirements file

Command used to create a docker file is :

1. docker build -t ml_system .
2. docker save ml_system > "image.tar "

after this i make a zip file of cumulocity manifest file and the tar file with name as : ml-system.

[alexis-sachin]

[Reuben_Miller2 (Reuben Miller)]

Can you double check that the zip does not contain a nested folder:

For example I just checked the structure of the cloud-http-proxy microservice, and below shows the zip contents:

% unzip -l ~/"Downloads/cloud-http-proxy.zip"
Archive:  ~/Downloads/cloud-http-proxy.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
      677  03-05-2024 12:17   cumulocity.json
153496576  03-05-2024 12:18   image.tar
---------                     -------
153497253                     2 files

And if that looks ok, I would also double check that the tar file is readable (in case it was corrupted for some reason):

You can check the image.tar file by using the following command:

tar tvf ./image.tar

Which should give an output similar to this (the contents will differ for your microservice):

drwxr-xr-x 0/0               0 2024-03-05 12:17 280f9a589e1a4035c9b0c18e1698ee25c6d70673000b0324ab1813c60f980038/
-rw-r--r-- 0/0               3 2024-03-05 12:17 280f9a589e1a4035c9b0c18e1698ee25c6d70673000b0324ab1813c60f980038/VERSION
-rw-r--r-- 0/0             477 2024-03-05 12:17 280f9a589e1a4035c9b0c18e1698ee25c6d70673000b0324ab1813c60f980038/json
-rw-r--r-- 0/0            3584 2024-03-05 12:17 280f9a589e1a4035c9b0c18e1698ee25c6d70673000b0324ab1813c60f980038/layer.tar
drwxr-xr-x 0/0               0 2024-03-05 12:17 3f17fff9220b24cca874a3f4e00f5d8945688f9e9b864dbb6696c92765b2dd86/
-rw-r--r-- 0/0               3 2024-03-05 12:17 3f17fff9220b24cca874a3f4e00f5d8945688f9e9b864dbb6696c92765b2dd86/VERSION
-rw-r--r-- 0/0             981 2024-03-05 12:17 3f17fff9220b24cca874a3f4e00f5d8945688f9e9b864dbb6696c92765b2dd86/json
-rw-r--r-- 0/0           71168 2024-03-05 12:17 3f17fff9220b24cca874a3f4e00f5d8945688f9e9b864dbb6696c92765b2dd86/layer.tar
drwxr-xr-x 0/0               0 2024-03-05 12:17 42ed87b0ea80efdee2f95180fb3324c42f95d7bdc7dfc078650c0395b73ad227/
-rw-r--r-- 0/0               3 2024-03-05 12:17 42ed87b0ea80efdee2f95180fb3324c42f95d7bdc7dfc078650c0395b73ad227/VERSION
-rw-r--r-- 0/0             401 2024-03-05 12:17 42ed87b0ea80efdee2f95180fb3324c42f95d7bdc7dfc078650c0395b73ad227/json
-rw-r--r-- 0/0         7667200 2024-03-05 12:17 42ed87b0ea80efdee2f95180fb3324c42f95d7bdc7dfc078650c0395b73ad227/layer.tar
drwxr-xr-x 0/0               0 2024-03-05 12:17 541dc08a2edd6f3b485885645405a2acd8c1117d0bd25b863ad7efdc64abae94/
-rw-r--r-- 0/0               3 2024-03-05 12:17 541dc08a2edd6f3b485885645405a2acd8c1117d0bd25b863ad7efdc64abae94/VERSION
-rw-r--r-- 0/0             477 2024-03-05 12:17 541dc08a2edd6f3b485885645405a2acd8c1117d0bd25b863ad7efdc64abae94/json
-rw-r--r-- 0/0       118817792 2024-03-05 12:17 541dc08a2edd6f3b485885645405a2acd8c1117d0bd25b863ad7efdc64abae94/layer.tar
-rw-r--r-- 0/0            7002 2024-03-05 12:17 67119d34d866ae4eee062baf307245d8fc3ed514fe00869774e3865b60e4c91a.json
drwxr-xr-x 0/0               0 2024-03-05 12:17 80d70a594c960458917b39be588deee8a0a3c55805bab1a66a1e313a36d58e4b/
-rw-r--r-- 0/0               3 2024-03-05 12:17 80d70a594c960458917b39be588deee8a0a3c55805bab1a66a1e313a36d58e4b/VERSION
-rw-r--r-- 0/0             477 2024-03-05 12:17 80d70a594c960458917b39be588deee8a0a3c55805bab1a66a1e313a36d58e4b/json
-rw-r--r-- 0/0        19106304 2024-03-05 12:17 80d70a594c960458917b39be588deee8a0a3c55805bab1a66a1e313a36d58e4b/layer.tar
drwxr-xr-x 0/0               0 2024-03-05 12:17 cad007abb99d0272d367ef2845a7df61a095a7d65d2b22a043ea9f0dd989daff/
-rw-r--r-- 0/0               3 2024-03-05 12:17 cad007abb99d0272d367ef2845a7df61a095a7d65d2b22a043ea9f0dd989daff/VERSION
-rw-r--r-- 0/0             477 2024-03-05 12:17 cad007abb99d0272d367ef2845a7df61a095a7d65d2b22a043ea9f0dd989daff/json
-rw-r--r-- 0/0         7800320 2024-03-05 12:17 cad007abb99d0272d367ef2845a7df61a095a7d65d2b22a043ea9f0dd989daff/layer.tar
-rw-r--r-- 0/0             597 1970-01-01 01:00 manifest.json
-rw-r--r-- 0/0              99 1970-01-01 01:00 repositories

[alexis-sachin]

[Tristan_Bastian]

The Push failed on image is a known issue with docker engine v25.
Consider downgrading to v24 for now.

[Robert_Neale]

Echoing Tristan’s info, the fix for the docker 25 problem will be in these versions…

Fix versions

10.17.0.455
10.18.0.349
10.16.0.448

…and the upcoming y2024 version.

[alexis-sachin]

Hi i am using docker version v4.28.0 and there is no option to install docker desktop version 4.24 ?

[Korbinian_Butz]

Hi,

the colleagues are referring to v25 of the docker-engine while your version seems to be the version of Docker desktop.
Docker Desktop v4.28 is using v25 engine:

According to Docker Desktop release notes | Docker Docs , Docker Desktop v4.27 started to use v25 engine. So you’d have to downgrade to anything below this version until the Fix mentioned by Robert reached your Cumulocity instance.

[Harrison_Pace]

I am running 10.18.0.356 and it still doesn’t seem to be fixed, despite 10.18.0.349+ supposedly fixing the issue?

Any insight as to which versions have / will contain the fix?

[Robert_Neale]

10.18.0.356 of what? Frontend? Backend? Microservice SDK?

[Harrison_Pace]

Sorry I was referencing the Backend.

Frontend 1018.0.233
Backend 1018.0.356

Not using the SDK, just a Python based Microservice based on FastAPI.

Experiencing the issue described and required a downgrade to Docker Engine <25 to get it working.