Graham McIntire
478e7b1936
When a new deployment occurs in k8s, all connected LiveViews now receive a notification to update their deployment timestamp display. Changes: - Added DeploymentNotifier GenServer that broadcasts deployment events - LiveViews subscribe to "deployment_events" PubSub topic - When DEPLOYED_AT env var is set (k8s deployments), a notification is sent after app startup - LiveViews handle the deployment event and update their timestamp This ensures that when a new version is deployed, users see the deployment timestamp update in real-time without needing to refresh their browser. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
62 lines
1.7 KiB
Elixir
62 lines
1.7 KiB
Elixir
defmodule Aprsme.DeploymentNotifier do
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@moduledoc """
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Monitors for deployment changes and notifies connected clients.
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In k8s, this detects when the DEPLOYED_AT environment variable changes.
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"""
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use GenServer
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require Logger
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@check_interval :timer.seconds(30)
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def start_link(opts \\ []) do
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GenServer.start_link(__MODULE__, opts, name: __MODULE__)
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end
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def init(_opts) do
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# Schedule first check
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Process.send_after(self(), :check_deployment, @check_interval)
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# Get initial deployment timestamp
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deployed_at = Aprsme.Release.deployed_at()
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{:ok, %{deployed_at: deployed_at}}
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end
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def handle_info(:check_deployment, state) do
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# Schedule next check
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Process.send_after(self(), :check_deployment, @check_interval)
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# Get current deployment timestamp
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current_deployed_at = Aprsme.Release.deployed_at()
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# Check if deployment timestamp changed (shouldn't happen in same process, but useful for monitoring)
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if current_deployed_at == state.deployed_at do
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{:noreply, state}
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# Broadcast the new deployment
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else
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Logger.info("Deployment timestamp changed from #{state.deployed_at} to #{current_deployed_at}")
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Phoenix.PubSub.broadcast(
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Aprsme.PubSub,
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"deployment_events",
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{:new_deployment, %{deployed_at: current_deployed_at}}
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)
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{:noreply, %{state | deployed_at: current_deployed_at}}
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end
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end
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@doc """
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Notify about a new deployment immediately.
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This can be called from the release module when deployment is detected.
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"""
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def notify_deployment(deployed_at) do
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Phoenix.PubSub.broadcast(
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Aprsme.PubSub,
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"deployment_events",
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{:new_deployment, %{deployed_at: deployed_at}}
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)
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end
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end
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