Docker based build fails: fritzbox_exporter@v0.0.0-20240820210122-780fb64b5bf9 requires go >= 1.22.6 (running go 1.21.10)

[rmi1974]

Hello folks,

when trying to build with buildx docker container it fails:

 => ERROR [linux/amd64 builder 2/4] RUN go install github.com/sberk42/fritzbox_exporter@latest     && mkdir /app     && mv /go/bin/fritzbox_exporter /app                                0.8s
 => CACHED [linux/arm64 runtime-image 2/4] RUN mkdir /app     && addgroup -S -g 1000 fritzbox     && adduser -S -u 1000 -G fritzbox fritzbox     && chown -R fritzbox:fritzbox /app      0.0s
 => CACHED [linux/arm64 runtime-image 3/4] WORKDIR /app                                                                                                                                  0.0s
 => CANCELED [linux/arm64 builder 2/4] RUN go install github.com/sberk42/fritzbox_exporter@latest     && mkdir /app     && mv /go/bin/fritzbox_exporter /app                             0.9s
------                                                                                                                                                                                        
 > [linux/amd64 builder 2/4] RUN go install github.com/sberk42/fritzbox_exporter@latest     && mkdir /app     && mv /go/bin/fritzbox_exporter /app:                                           
0.511 go: downloading github.com/sberk42/fritzbox_exporter v0.0.0-20240820210122-780fb64b5bf9                                                                                                 
0.577 go: github.com/sberk42/fritzbox_exporter@latest: github.com/sberk42/fritzbox_exporter@v0.0.0-20240820210122-780fb64b5bf9 requires go >= 1.22.6 (running go 1.21.10; GOTOOLCHAIN=local)
------
Dockerfile:5
--------------------
   4 |     FROM golang:1.21-alpine3.18 AS builder
   5 | >>> RUN go install github.com/sberk42/fritzbox_exporter@latest \
   6 | >>>     && mkdir /app \
   7 | >>>     && mv /go/bin/fritzbox_exporter /app
   8 |     
--------------------
ERROR: failed to solve: process "/bin/sh -c go install github.com/sberk42/fritzbox_exporter@latest     && mkdir /app     && mv /go/bin/fritzbox_exporter /app" did not complete successfully: exit code: 1

This broke it:

d4568d8

You need to update the Dockerfile as well for people using Docker to build stuff.

https://hub.docker.com/_/golang/tags?page=1&page_size=&name=alpine&ordering=

Something like this:

diff --git a/Dockerfile b/Dockerfile
index acb934d..1fe5e71 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 
 # Build Image
-FROM golang:1.21-alpine3.18 AS builder
+FROM golang:1.22.6-alpine3.20 AS builder
 RUN go install github.com/sberk42/fritzbox_exporter@latest \
     && mkdir /app \
     && mv /go/bin/fritzbox_exporter /app

Regards

[sberk42]

thanks for the hint - just updated the Dockerfile