Github user karol-brejna-i commented on the issue:
https://github.com/apache/incubator-gearpump/pull/233
I've just confirmed. The problem persists, even when networking/proxy
problems are overcomed:
```
$ docker build --no-cache -t gearpump/gearpump-launcher
integrationtest/docker/gearpump
Sending build context to Docker daemon 8.192kB
Step 1/7 : FROM grubykarol/jre:8u121b13_server
---> f7e482e81614
Step 2/7 : RUN opkg-install python
---> Running in 0939e0c36efc
Downloading
http://downloads.openwrt.org/snapshots/trunk/x86/64/packages/base/Packages.gz.
Inflating
http://downloads.openwrt.org/snapshots/trunk/x86/64/packages/base/Packages.gz.
Updated list of available packages in /var/opkg-lists/base.
Downloading
http://downloads.openwrt.org/snapshots/trunk/x86/64/packages/packages/Packages.gz.
Inflating
http://downloads.openwrt.org/snapshots/trunk/x86/64/packages/packages/Packages.gz.
Updated list of available packages in /var/opkg-lists/packages.
Unknown package 'python'.
Collected errors:
* opkg_install_cmd: Cannot install package python.
```
`Unknown package 'python'.`
---
