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68 lines
3.0 KiB
Plaintext
68 lines
3.0 KiB
Plaintext
# (1) Setting up a registry, and telling Tilt to use it.
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# Tilt needs a registry to store images.
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# The following manifest defines a Deployment to run a basic Docker registry,
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# and a NodePort Service to access it. Using a NodePort means that we don't
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# need to obtain a TLS certificate, because we will be accessing the registry
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# through localhost.
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k8s_yaml('../k8s/tilt-registry.yaml')
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# Tell Tilt to use the registry that we just deployed instead of whatever
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# is defined in our Kubernetes resources. Tilt will patch image names to
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# use our registry.
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default_registry('localhost:30555')
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# Create a port forward so that we can access the registry from our local
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# environment, too. Note that if you run Tilt directly from a Kubernetes node
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# (which is not typical, but might happen in some lab/training environments)
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# the following might cause an error because port 30555 is already taken.
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k8s_resource(workload='tilt-registry', port_forwards='30555:5000')
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# (2) Telling Tilt how to build and run our app.
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# The following two lines will use the kubectl-build plugin
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# to leverage buildkit and build the images in our Kubernetes
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# cluster. This is not enabled by default, because it requires
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# the plugin to be installed.
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# See https://github.com/vmware-tanzu/buildkit-cli-for-kubectl
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# for more information about this plugin.
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#load('ext://kubectl_build', 'kubectl_build')
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#docker_build = kubectl_build
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# Our Kubernetes manifests use images 'dockercoins/...' so we tell Tilt
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# how each of these images should be built. The first argument is the name
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# of the image, the second argument is the directory containing the build
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# context (i.e. the Dockerfile to build the image).
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docker_build('dockercoins/hasher', 'hasher')
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docker_build('dockercoins/rng', 'rng')
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docker_build('dockercoins/webui', 'webui')
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docker_build('dockercoins/worker', 'worker')
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# The following manifests defines five Deployments and four Services for
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# our application.
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k8s_yaml('../k8s/dockercoins.yaml')
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# (3) Finishing touches.
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# The following line lets Tilt run with the default kubeadm cluster-admin context.
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allow_k8s_contexts('kubernetes-admin@kubernetes')
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# This will run an ngrok tunnel to expose Tilt to the outside world.
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# This is intended to be used when Tilt runs on a remote machine.
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local_resource(name='ngrok:tunnel', serve_cmd='ngrok http 10350')
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# This will wait until the ngrok tunnel is up, and show its URL to the user.
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# We send the output to /dev/tty so that it doesn't get intercepted by
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# Tilt, and gets displayed to the user's terminal instead.
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# Note: this assumes that the ngrok instance will be running on port 4040.
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# If you have other ngrok instances running on the machine, this might not work.
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local_resource(name='ngrok:showurl', cmd='''
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while sleep 1; do
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TUNNELS=$(curl -fsSL http://localhost:4040/api/tunnels | jq -r .tunnels[].public_url)
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[ "$TUNNELS" ] && break
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done
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printf "\nYou should be able to connect to the Tilt UI with the following URL(s): %s\n" "$TUNNELS" >/dev/tty
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'''
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)
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