Simplify docker image

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

Author: mudler

Dockerfile

@@ -1,24 +1,12 @@
-FROM alpine AS builder
+FROM golang:1.25-alpine AS builder
 
-RUN apk add --no-cache \
-    curl \
-    tar \
-    xz \
-    gcc \
-    musl-dev
 ARG MCP_SERVER=
-ARG GO_VERSION=1.25.1
-RUN curl -L -o go${GO_VERSION}.linux-amd64.tar.gz https://go.dev/dl/go${GO_VERSION}.linux-amd64.tar.gz
-RUN tar -C /usr/local -xzf go${GO_VERSION}.linux-amd64.tar.gz
-RUN rm go${GO_VERSION}.linux-amd64.tar.gz
-
-ENV PATH /usr/local/go/bin:$PATH
 
 WORKDIR /app
 
 COPY . .
 
-RUN go build -o main ./${MCP_SERVER}/
+RUN CGO_ENABLED=0 go build -o main ./${MCP_SERVER}/
 
 FROM alpine