Allow repo to work on Apple Silicon

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.14-alpine
+FROM --platform=linux/amd64 golang:1.14-alpine
 ENV SRC github.com/segmentio/ctlstore
 ARG VERSION
 
@@ -16,7 +16,7 @@ RUN CGO_ENABLED=1 go install -ldflags="-X github.com/segmentio/ctlstore/pkg/vers
 
 RUN apk del gcc git curl alpine-sdk libc6-compat
 
-FROM 528451384384.dkr.ecr.us-west-2.amazonaws.com/segment-alpine
+FROM --platform=linux/amd64 528451384384.dkr.ecr.us-west-2.amazonaws.com/segment-alpine
 RUN apk --no-cache add sqlite
 
 COPY --from=0 /bin/chamber /bin/chamber

Dockerfile-load-generator

@@ -1,4 +1,4 @@
-FROM golang:1.15
+FROM golang:1.19
 COPY . /go/src/github.com/segmentio/ctlstore/
 RUN go install github.com/segmentio/ctlstore/pkg/cmd/ctlstore-mutator
 ENTRYPOINT /go/bin/ctlstore-mutator

Dockerfile-mysql

@@ -1,2 +1,2 @@
-FROM mysql:5.6
+FROM --platform=linux/amd64 mysql:5.6
 COPY ctldb-example.sql /docker-entrypoint-initdb.d/

docker-compose-example.yml

@@ -39,7 +39,7 @@ services:
       - -writer-secret
       - heartbeat
 
-  # supervisor periodically snapshots ldb
+    # supervisor periodically snapshots ldb
     supervisor:
       restart: always
       build:

docker-compose.yml

@@ -2,6 +2,7 @@ version: '2.2'
 services:
     mysql:
         image: mysql:5.6
+        platform: linux/amd64
         restart:
             always
         ports: