Why is 'sh: go: not found' Encountered When Installing Go in Alpine Docker Images?

Installing Go in Alpine Linux

When attempting to install Go in an Alpine Docker image, users may encounter the error "sh: go: not found" when checking the version after extracting the tar file and modifying the PATH.

Solution:

The issue arises because the Go binaries are not copied into the image during the installation process. To resolve this, consider using multi-stage builds, as demonstrated below:

FROM XXX

COPY --from=golang:1.13-alpine /usr/local/go/ /usr/local/go/

ENV PATH="/usr/local/go/bin:${PATH}"

In this multi-stage build, the first stage is the official Golang image, from which the Go installation is copied using COPY --from. The second stage adds the Go binaries to the PATH environment variable.

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