Update alpine images

Signed-off-by: David Gageot <[email protected]>

Author: dgageot

Dockerfile

@@ -127,7 +127,7 @@ RUN --mount=type=cache,target=/root/.cache/go-build \
     --mount=source=./tools/docker-mcp-bridge,target=. \
     go build -trimpath -ldflags "-s -w" -o /docker-mcp-bridge .
 
-FROM alpine:3.22@sha256:8a1f59ffb675680d47db6337b49d22281a139e9d709335b492be023728e11715 AS mcp-gateway
+FROM alpine:3.22@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1 AS mcp-gateway
 RUN apk add --no-cache docker-cli socat jq
 VOLUME /misc
 COPY --from=build-mcp-bridge /docker-mcp-bridge /misc/

examples/interceptors/http/Dockerfile

@@ -3,6 +3,6 @@ WORKDIR /app
 COPY main.go ./
 RUN go build -o /main main.go
 
-FROM alpine:3.22@sha256:8a1f59ffb675680d47db6337b49d22281a139e9d709335b492be023728e11715
+FROM alpine:3.22@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1
 COPY --from=build /main /
 ENTRYPOINT ["/main"]

tools/dns-forwarder/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.22.0
+FROM alpine:3.22@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1
 
 COPY --from=coredns/coredns:1.12.2 /coredns /coredns
 COPY Corefile /Corefile

tools/jcat/Dockerfile

@@ -2,7 +2,7 @@ FROM tinygo/tinygo:0.37.0@sha256:d1307cd9d2bd25167dbbd5abe253f09f2036e7993474bd8
 WORKDIR /src
 RUN --mount=target=. tinygo build -opt=z -scheduler=none -gc=leaking -no-debug -o /tmp/jcat main.go
 
-FROM alpine:3.21@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c AS create-user
+FROM alpine:3.22@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1 AS create-user
 RUN adduser -D user
 
 FROM scratch

tools/l7proxy/Dockerfile

@@ -1,7 +1,7 @@
 
 # syntax=docker/dockerfile:1
 
-FROM alpine:3.22@sha256:8a1f59ffb675680d47db6337b49d22281a139e9d709335b492be023728e11715 AS ca-certificates
+FROM alpine:3.22@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1 AS ca-certificates
 RUN apk add ca-certificates
 
 FROM golang:1.24.5-alpine AS builder