authorize: fix domain check bug, rewrite url for forward auth, add dev script

scripts/build-dev-docker.bash

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -euxo pipefail
+
+_dir=/tmp/pomerium-dev-docker
+mkdir -p "$_dir"
+
+# build linux binary
+env GOOS=linux \
+    GOARCH=amd64 \
+    CGO_ENABLED=0 \
+    GO111MODULE=on \
+    go build \
+    -ldflags "-s -w" \
+    -o "$_dir/pomerium" \
+    ./cmd/pomerium
+
+# build docker image
+(
+
+
+cd $_dir
+cat <<EOF >config.yaml
+
+EOF
+cat <<EOF >Dockerfile
+FROM gcr.io/distroless/base:debug
+WORKDIR /pomerium
+COPY pomerium /bin/pomerium
+COPY config.yaml /pomerium/config.yaml
+ENTRYPOINT [ "/bin/pomerium" ]
+CMD ["-config","/pomerium/config.yaml"]
+EOF
+docker build --tag=pomerium/pomerium:dev .
+
+# build for minikube
+if command -v minikube >/dev/null 2>&1 ; then
+  eval "$(minikube docker-env --shell=bash)"
+  docker build --tag=pomerium/pomerium:dev .
+fi
+
+
+)