ssh not found error in docker image

[Michał Drobniak]

Hi

When I am using mzbench with mzb_api_ec2_plugin I got following error:

07:51:07.535 [error] [ API ] <0.1123.0> [ REMOTE EXEC ] Command execution failed: Cmd: ssh -A -o LogLevel=ERROR -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no ec2-user@10.1.70.135 "source /etc/profile; mkdir -p /tmp/mz/bench-0-1574581622" Exit code: 127 Output: sh: line 0: exec: ssh: not found
--
07:51:07.536 [error] [ API ] <0.994.0> Stage 'pipeline - provisioning': failed Command returned 127:  ssh -A -o LogLevel=ERROR -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no ec2-user@10.1.70.135 "source /etc/profile; mkdir -p /tmp/mz/bench-0-1574581622" Command output: sh: line 0: exec: ssh: not found

Somehow ssh is not part of docker.io/ridrisov/mzbench:latest image

Is the docker image broken? Why is it missing ssh?
I see it is installed here https://github.com/satori-com/mzbench/blob/master/Dockerfile#L12

[Renat Idrisov]

Hi,
yes, this doesn't look right,
we used mzbench inside ec2 on AMIs that are publicly available, list is here:
https://github.com/mzbench/mzbench/blob/master/doc/cloud_plugins.md#amazon-ec2

regardless of that, docker image has to have ssh, you are right,
the image from docker.io you referring to may be outdated, could you build and use one from here:
https://github.com/mzbench/mzbench

Thanks!

[Michał Drobniak]

thanks for response

Yep I used proper AMI from the list but AMIs seem to be working fine. Only docker image is a problem I believe.
Wow I wasn't aware of https://github.com/mzbench/mzbench, it seems to be active repository!

Ok I will build docker image from https://github.com/mzbench/mzbench, push to my docker hub and I will try it in my k8s cluster

[Michał Drobniak]

When building docker image from https://github.com/mzbench/mzbench I got following error :/

...

===> Compiling pretty_errors
===> Compiling mzbench_utils
===> Compiling _build/default/deps/mzbench_utils/src/mzb_lists.erl failed
_build/default/deps/mzbench_utils/src/mzb_lists.erl:37: illegal pattern
_build/default/deps/mzbench_utils/src/mzb_lists.erl:37: variable 'E' is unbound
_build/default/deps/mzbench_utils/src/mzb_lists.erl:37: variable 'ST' is unbound

make: *** [Makefile:87: .make/compilation-up-to-date] Error 1
make: Leaving directory '/opt/mzbench_src/server'
The command '/bin/sh -c mkdir -p ${HOME_DIR}/.local/share/mzbench_workers     && pip install -r requirements.txt     && make -C ./server generate     && cp -R ./server/_build/default/rel/mzbench_api ${MZBENCH_API_DIR}/     && make -C ./node install     && make -C ./node local_tgz     && ln -s ${HOME_DIR}/.local/cache/mzbench_api/packages/node-*_erts*.tgz ${HOME_DIR}/.local/cache/mzbench_api/packages/node-someversion-someos.tgz     && ln -s ${HOME_DIR}/.local/cache/mzbench_api/packages/node-*_erts*.tgz ${HOME_DIR}/.local/cache/mzbench_api/packages/node-$(git rev-parse HEAD)-someos.tgz' returned a non-zero code: 2

Those are final lines of docker build output.

Do I understand correctly that https://hub.docker.com/repository/docker/ridrisov/mzbench is the only existing docker image but it's not build from newest version of mzbench from https://github.com/mzbench/mzbench?

[Renat Idrisov]

yes, that is correct,
looks like Dockerfile from mzbench/mzbench is broken, that is interesting, could you open an issue there? (I mean in mzbench/mzbench) there are people who use it with k8s, they may comment on what is the status of this file

[Michał Drobniak]

ok, will do, thanks :)

[Michał Drobniak]

oh actually problem with docker build is already reported mzbench#15

[Renat Idrisov]

this is even funnier, it was me who forgot to follow-up, sorry