API error (500): fill out specgen: must set source volume

[mtcolman]

Expected Behavior

Tried running a docker-slim build against an image I have locally.

docker-slim build <myimage>:<mytag>

I would expect it to build a slim image.

---

Actual Behavior

received:

cmd=build state=container.inspection.start
time="2022-06-08T10:17:46+01:00" level=debug msg="FatContainerCmd - [/bin/sh]" app=docker-slim command=build component=container.inspector
time="2022-06-08T10:17:46+01:00" level=info msg="starting instrumented 'fat' container..." app=docker-slim command=build
time="2022-06-08T10:17:46+01:00" level=debug msg="RunContainer: sensor (/usr/local/bin/docker-slim-sensor) perms => 0755" app=docker-slim command=build component=container.inspector
time="2022-06-08T10:17:46+01:00" level=debug msg="ensureSensorVolume: already have volume = docker-slim-sensor.1.37.6" app=docker-slim command=build component=container.inspector
time="2022-06-08T10:17:46+01:00" level=debug msg="RunContainer: default exposed ports => map[docker.Port]struct {}{\"65501/tcp\":struct {}{}, \"65502/tcp\":struct {}{}}" app=docker-slim command=build component=container.inspector
time="2022-06-08T10:17:46+01:00" level=debug msg="RunContainer: HostConfig.PublishAllPorts => true" app=docker-slim command=build component=container.inspector
cmd=build info=report file='slim.report.json'
time="2022-06-08T10:17:46+01:00" level=fatal msg="docker-slim: failure" error="API error (500): fill out specgen: must set source volume" stack="goroutine 1 [running]:\nruntime/debug.Stack(0xc000410800, 0xf668f8, 0xc0003b25d0)\n\truntime/debug/stack.go:24 +0x9f\ngithub.com/docker-slim/docker-slim/pkg/util/errutil.FailOn(0x10cce20, 0xc0004447c0)\n\tgithub.com/docker-slim/docker-slim/pkg/util/errutil/errutil.go:28 +0x54\ngithub.com/docker-slim/docker-slim/pkg/app.(*ExecutionContext).FailOn(0xc00071a780, 0x10cce20, 0xc0004447c0)\n\tgithub.com/docker-slim/docker-slim/pkg/app/execontext.go:49 +0x3a\ngithub.com/docker-slim/docker-slim/pkg/app/master/commands/build.OnCommand(0xc00071a780, 0xc0000b0200, 0x7ffc85a3a6b8, 0x22, 0x0, 0x0, 0x174ab78, 0x0, 0x0, 0x0, ...)\n\tgithub.com/docker-slim/docker-slim/pkg/app/master/commands/build/handler.go:1061 +0x3175\ngithub.com/docker-slim/docker-slim/pkg/app/master/commands/build.glob..func1(0xc000808700, 0x86, 0x130)\n\tgithub.com/docker-slim/docker-slim/pkg/app/master/commands/build/cli.go:662 +0x3688\ngithub.com/urfave/cli/v2.(*Command).Run(0x16e0f00, 0xc0000ac580, 0x0, 0x0)\n\tgithub.com/urfave/cli/[email protected]/command.go:163 +0x4ed\ngithub.com/urfave/cli/v2.(*App).RunContext(0xc0000b8000, 0x10e42a0, 0xc000124010, 0xc00010c050, 0x5, 0x5, 0x0, 0x0)\n\tgithub.com/urfave/cli/[email protected]/app.go:313 +0x81f\ngithub.com/urfave/cli/v2.(*App).Run(...)\n\tgithub.com/urfave/cli/[email protected]/app.go:224\ngithub.com/docker-slim/docker-slim/pkg/app/master.Run()\n\tgithub.com/docker-slim/docker-slim/pkg/app/master/app.go:15 +0x6c\nmain.main()\n\tgithub.com/docker-slim/docker-slim/cmd/docker-slim/main.go:15 +0x54\n" version="linux|Transformer|1.37.6|26a36c88a94c677efd734e874ba081dabb84a224|2022-04-23_06:03:56AM"

---

Steps to Reproduce the Problem

1. Create Dockerfile:

FROM frolvlad/alpine-glibc:alpine-3.15_glibc-2.34

ARG TKN_VERSION=0.22.0
ARG OC_VERSION=4.7
ARG USER=octkn
ARG UID=1000
ARG GID=1000

ENV HOME="/home/octkn"

RUN addgroup -S -g ${GID} ${USER} && \
    adduser -S -D -u ${UID} -G ${USER} ${USER} && \
    wget -O- https://github.com/tektoncd/cli/releases/download/v${TKN_VERSION}/tkn_${TKN_VERSION}_Linux_x86_64.tar.gz | tar zxf - -C /usr/local/bin && \
    wget -O- https://mirror.openshift.com/pub/openshift-v4/x86_64/clients/ocp/stable-${OC_VERSION}/openshift-client-linux.tar.gz | tar zxf - -C /usr/local/bin && \
    apk update && apk add jq bash curl && \
    apk add --update ca-certificates && \
    rm -rf /var/cache/apk/* && \
    chown -R ${UID}:0 /home/octkn && \
    chmod -R g=u /home/octkn
	
USER ${UID}

2. Build image (using docker/podman)
3. Ensure image available locally
4. Run docker-slim --log-level debug build <image>:<tag>
5. Get results above

---

Specifications

• Version: docker-slim version linux|Transformer|1.37.6|26a36c88a94c677efd734e874ba081dabb84a224|2022-04-23_06:03:56AM
• Platform: uname -a - Linux IBM-PF312AMV 5.10.102.1-microsoft-standard-WSL2 #1 SMP Wed Mar 2 00:30:59 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

[kcq]

@mtcolman Do you have both Docker and Podman installed or just Podman? Haven't tested as much with WSL on Window. Thanks for the repro Dockerfile!

[mtcolman]

@kcq I have just podman installed, but also podman-docker to emulate docker (but is actually podman)