From 88941ef36d4bd24246e397705b9103abe2544f7f Mon Sep 17 00:00:00 2001
From: Pierre Prinetti <pierreprinetti@redhat.com>
Date: Fri, 6 Sep 2024 15:58:09 +0200
Subject: [PATCH] Add a Containerfile

---
 Containerfile | 23 +++++++++++++++++++++++
 README.md     | 39 ++++++++++++++++++++++++++++++++++++---
 2 files changed, 59 insertions(+), 3 deletions(-)
 create mode 100644 Containerfile

diff --git a/Containerfile b/Containerfile
new file mode 100644
index 0000000..f40206b
--- /dev/null
+++ b/Containerfile
@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1
+
+FROM docker.io/library/golang:1.22 AS build
+
+WORKDIR /src
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY ./pkg ./pkg
+COPY ./cmd ./cmd
+
+RUN CGO_ENABLED=0 GOOS=linux go build -o /openstack-proxy ./cmd/openstack-proxy
+
+FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
+
+ENV OS_CLOUD=openstack OS_CLIENT_CONFIG_FILE=/config/clouds.yaml
+
+EXPOSE 13000
+
+COPY --from=build /openstack-proxy /
+
+ENTRYPOINT ["/openstack-proxy"]
diff --git a/README.md b/README.md
index 6eae3ea..94dbdd8 100644
--- a/README.md
+++ b/README.md
@@ -22,21 +22,54 @@ By default the server will listen on localhost on port 13000.
 
 ### Local server
 
-```shell
+```bash
 export OS_CLOUD=openstack
 ./openstack-proxy -o proxied-clouds.yaml
 ```
-```shell
+```bash
 export OS_CLIENT_CONFIG_FILE=./proxied-clouds.yaml
 openstack server list
 ```
 
 ### On the network, with HTTPS
 
-```shell
+```bash
 ./openstack-proxy \
 	--url https://myserver.example.com:13000 \
 	--cert /var/run/osp-cert.pem \
 	--key /var/run/osp-key.pem' \
 	-o proxied-clouds.yaml
 ```
+
+## Containerized
+
+An image of `openstack-proxy` is available on `quay.io/pierreprinetti/openstack-proxy`.
+
+Here is an example of how to use it. This example uses the clouds.yaml in the
+default location, edit as necessary:
+
+```bash
+export OS_CLOUD=openstack # Name of the target cloud in clouds.yaml
+export OS_CLIENT_CONFIG_FILE="$(mktemp -d)/clouds.yaml" # Where to write the generated clouds.yaml
+podman run \
+        --name openstack-proxy \
+        -d \
+        --rm \
+        -v ${XDG_CONFIG_HOME:-${HOME}/.config}/openstack/clouds.yaml:/config/clouds.yaml:Z,ro \
+        -v $(dirname "$OS_CLIENT_CONFIG_FILE"):/out:z \
+        --env OS_CLOUD=$OS_CLOUD \
+        -p 13000:13000 \
+        quay.io/pierreprinetti/openstack-proxy -o "/out/$(basename "$OS_CLIENT_CONFIG_FILE")"
+```
+
+Logs can be inspected in a separate terminal:
+
+```bash
+podman container logs --follow openstack-proxy
+```
+
+To terminate the container:
+
+```bash
+podman container stop openstack-proxy
+```