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Proxy calls to the OpenStack API. Formerly known as openstack-mitm

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openstack-proxy

openstack-proxy proxies calls to OpenStack, exposing the OpenStack API locally over http or https with a provided certificate.

All URLs in the OpenStack catalog are rewritten to point to the proxy itself, which will properly reverse-proxy them to the original URL.

Use locally

Build with go build ./cmd/openstack-proxy.

openstack-proxy will parse a clouds.yaml file at the known locations, similar to what python-openstackclient does.

By default the server will listen on localhost on port 13000.

Configuration:

  • --url <url>: the address this proxy will be reachable at. Default: http://locahost:13000
  • --cert <path>: path of the local PEM-encoded HTTPS certificate file. Mandatory if the scheme of --url is HTTPS
  • --key <path>: path of the local PEM-encoded HTTPS certificate key file. Mandatory if the scheme of --url is HTTPS
  • -o <path>: location where to write a new clouds.yaml that points to the openstack-proxy instance

Examples

Local server

export OS_CLOUD=openstack
./openstack-proxy -o proxied-clouds.yaml
export OS_CLIENT_CONFIG_FILE=./proxied-clouds.yaml
openstack server list

On the network, with HTTPS

./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:

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:

podman container logs --follow openstack-proxy

To terminate the container:

podman container stop openstack-proxy