add fly conf

.dockerignore

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+Dockerfile
+.dockerignore
+node_modules
+.git

Dockerfile

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+FROM debian:bullseye as builder
+
+ARG NODE_VERSION=19.7.0
+
+RUN apt-get update; apt install -y curl
+RUN curl https://get.volta.sh | bash
+ENV VOLTA_HOME /root/.volta
+ENV PATH /root/.volta/bin:$PATH
+RUN volta install node@${NODE_VERSION}
+
+#######################################################################
+
+RUN mkdir /app
+WORKDIR /app
+
+# NPM will not install any package listed in "devDependencies" when NODE_ENV is set to "production",
+# to install all modules: "npm install --production=false".
+# Ref: https://docs.npmjs.com/cli/v9/commands/npm-install#description
+
+ENV NODE_ENV production
+
+COPY . .
+
+RUN npm install
+FROM debian:bullseye
+
+LABEL fly_launch_runtime="nodejs"
+
+COPY --from=builder /root/.volta /root/.volta
+COPY --from=builder /app /app
+
+WORKDIR /app
+ENV NODE_ENV production
+ENV PATH /root/.volta/bin:$PATH
+ENV PORT 8080
+
+CMD [ "npm", "run", "start" ]

fly.toml

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+# fly.toml file generated for y-webrtc-eu on 2023-03-16T15:02:47+01:00
+
+app = "y-webrtc-eu"
+kill_signal = "SIGINT"
+kill_timeout = 5
+processes = []
+
+[env]
+
+[experimental]
+  auto_rollback = true
+
+[[services]]
+  http_checks = []
+  internal_port = 8080
+  processes = ["app"]
+  protocol = "tcp"
+  script_checks = []
+  [services.concurrency]
+    hard_limit = 25
+    soft_limit = 20
+    type = "connections"
+
+  [[services.ports]]
+    force_https = true
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 0
+    timeout = "2s"