I am trying to containerize and as well as start my Go lang application using Docker-compose, The image is built successfully according to the logs but my container does not for docker-compose up and it throws the following error to my console.
Cannot start service app: OCI runtime create failed: container_linux.go:346: starting container process caused "exec: \\"go\\": executable file not found in $PATH": unknown
Here is what my Docker file looks like.
ARG GO_VERSION=1.13
FROM golang:${GO_VERSION}-alpine AS builder
# We create an /app directory within our
# image that will hold our application source
# files
RUN mkdir /raedar
# Create the user and group files that will be used in the running container to
# run the process as an unprivileged user.
RUN mkdir /user && \
echo 'nobody:x:65534:65534:nobody:/:' > /user/passwd && \
echo 'nobody:x:65534:' > /user/group
# Install git.
# Git is required for fetching the dependencies.
# Allow Go to retrieve the dependencies for the buld
RUN apk update && apk add --no-cache ca-certificates git
RUN apk add --no-cache libc6-compat
# Force the go compiler to use modules
ENV GO111MODULE=on
ADD . /raedar/
WORKDIR /raedar/
RUN go get -d -v golang.org/x/net/html
COPY go.mod go.sum ./
COPY . .
# Compile the binary, we don't want to run the cgo
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o bin/main cmd/app/main.go
# Final stage: the running container.
FROM scratch AS final
WORKDIR /root/
# Import the user and group files from the first stage.
COPY --from=builder /user/group /user/passwd /etc/
# Import the Certificate-Authority certificates for enabling HTTPS.
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
# Import the compiled executable from the first stage.
COPY --from=builder /raedar/bin/main .
EXPOSE 8080
# Perform any further action as an unprivileged user.
USER nobody:nobody
# Run the compiled binary.
CMD ["./main"]
The error shows you're trying to run go
, not ./main
:
exec: \\"go\\": executable file not found in $PATH
A matching Dockerfile would have the line CMD ["go", "./main"]
rather than CMD ["./main"]
.
So either you're unexpectedly building a different Dockerfile, or you're changing the command when you run a container with that image. In particular, if you're using docker-compose
, make sure you're not setting command: go ./main
or entrypoint: go
, either of which could cause this behavior.
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