Add Dockerfiles for egress and freddie

Dockerfile.egress

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+FROM golang:1.20-alpine
+
+WORKDIR /usr/src/app
+
+COPY go.mod go.sum ./
+RUN go mod download && go mod verify
+
+COPY . .
+RUN go build -v -o /usr/local/bin/egress ./egress/cmd/...
+
+EXPOSE 8000/tcp
+
+CMD ["egress"]

Dockerfile.freddie

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+FROM golang:1.20-alpine
+
+WORKDIR /usr/src/app
+
+COPY go.mod go.sum ./
+RUN go mod download && go mod verify
+
+COPY . .
+RUN go build -v -o /usr/local/bin/freddie ./freddie/...
+
+EXPOSE 9000/tcp
+
+CMD ["freddie"]

docker-compose.yml

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+version: '3.8'
+
+services:
+  freddie:
+    image: freddie
+    build:
+      dockerfile: ./Dockerfile.freddie
+    ports:
+      - 9000:9000/tcp
+  egress:
+    image: egress
+    build:
+      dockerfile: ./Dockerfile.egress
+    ports:
+      - 8000:8000/tcp