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Merge pull request #46 from dwyl/migrate-from-heroku-to-fly.io-issue-#45
PR: Migrate from heroku to fly.io issue #45
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| # This file excludes paths from the Docker build context. | ||
| # | ||
| # By default, Docker's build context includes all files (and folders) in the | ||
| # current directory. Even if a file isn't copied into the container it is still sent to | ||
| # the Docker daemon. | ||
| # | ||
| # There are multiple reasons to exclude files from the build context: | ||
| # | ||
| # 1. Prevent nested folders from being copied into the container (ex: exclude | ||
| # /assets/node_modules when copying /assets) | ||
| # 2. Reduce the size of the build context and improve build time (ex. /build, /deps, /doc) | ||
| # 3. Avoid sending files containing sensitive information | ||
| # | ||
| # More information on using .dockerignore is available here: | ||
| # https://docs.docker.com/engine/reference/builder/#dockerignore-file | ||
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| .dockerignore | ||
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| # Ignore git, but keep git HEAD and refs to access current commit hash if needed: | ||
| # | ||
| # $ cat .git/HEAD | awk '{print ".git/"$2}' | xargs cat | ||
| # d0b8727759e1e0e7aa3d41707d12376e373d5ecc | ||
| .git | ||
| !.git/HEAD | ||
| !.git/refs | ||
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| # Common development/test artifacts | ||
| /cover/ | ||
| /doc/ | ||
| /test/ | ||
| /tmp/ | ||
| .elixir_ls | ||
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| # Mix artifacts | ||
| /_build/ | ||
| /deps/ | ||
| *.ez | ||
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| # Generated on crash by the VM | ||
| erl_crash.dump | ||
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| # Static artifacts - These should be fetched and built inside the Docker image | ||
| /assets/node_modules/ | ||
| /priv/static/assets/ | ||
| /priv/static/cache_manifest.json |
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| # Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian instead of | ||
| # Alpine to avoid DNS resolution issues in production. | ||
| # | ||
| # https://hub.docker.com/r/hexpm/elixir/tags?page=1&name=ubuntu | ||
| # https://hub.docker.com/_/ubuntu?tab=tags | ||
| # | ||
| # | ||
| # This file is based on these images: | ||
| # | ||
| # - https://hub.docker.com/r/hexpm/elixir/tags - for the build image | ||
| # - https://hub.docker.com/_/debian?tab=tags&page=1&name=bullseye-20220801-slim - for the release image | ||
| # - https://pkgs.org/ - resource for finding needed packages | ||
| # - Ex: hexpm/elixir:1.14.1-erlang-25.1.1-debian-bullseye-20220801-slim | ||
| # | ||
| ARG ELIXIR_VERSION=1.14.1 | ||
| ARG OTP_VERSION=25.1.1 | ||
| ARG DEBIAN_VERSION=bullseye-20220801-slim | ||
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| ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}" | ||
| ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}" | ||
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| FROM ${BUILDER_IMAGE} as builder | ||
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| # install build dependencies | ||
| RUN apt-get update -y && apt-get install -y build-essential git \ | ||
| && apt-get clean && rm -f /var/lib/apt/lists/*_* | ||
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| # prepare build dir | ||
| WORKDIR /app | ||
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| # install hex + rebar | ||
| RUN mix local.hex --force && \ | ||
| mix local.rebar --force | ||
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| # set build ENV | ||
| ENV MIX_ENV="prod" | ||
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| # install mix dependencies | ||
| COPY mix.exs mix.lock ./ | ||
| RUN mix deps.get --only $MIX_ENV | ||
| RUN mkdir config | ||
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| # copy compile-time config files before we compile dependencies | ||
| # to ensure any relevant config change will trigger the dependencies | ||
| # to be re-compiled. | ||
| COPY config/config.exs config/${MIX_ENV}.exs config/ | ||
| RUN mix deps.compile | ||
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| COPY priv priv | ||
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| COPY lib lib | ||
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| # Compile the release | ||
| RUN mix compile | ||
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| # Changes to config/runtime.exs don't require recompiling the code | ||
| COPY config/runtime.exs config/ | ||
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| COPY rel rel | ||
| RUN mix release | ||
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| # start a new build stage so that the final image will only contain | ||
| # the compiled release and other runtime necessities | ||
| FROM ${RUNNER_IMAGE} | ||
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| RUN apt-get update -y && apt-get install -y libstdc++6 openssl libncurses5 locales \ | ||
| && apt-get clean && rm -f /var/lib/apt/lists/*_* | ||
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| # Set the locale | ||
| RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen | ||
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| ENV LANG en_US.UTF-8 | ||
| ENV LANGUAGE en_US:en | ||
| ENV LC_ALL en_US.UTF-8 | ||
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| WORKDIR "/app" | ||
| RUN chown nobody /app | ||
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| # set runner ENV | ||
| ENV MIX_ENV="prod" | ||
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| # Only copy the final release from the build stage | ||
| COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/app ./ | ||
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| USER nobody | ||
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| CMD ["/app/bin/server"] | ||
| # Appended by flyctl | ||
| ENV ECTO_IPV6 true | ||
| ENV ERL_AFLAGS "-proto_dist inet6_tcp" |
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| Original file line number | Diff line number | Diff line change |
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| import Config | ||
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| # config/runtime.exs is executed for all environments, including | ||
| # during releases. It is executed after compilation and before the | ||
| # system starts, so it is typically used to load production configuration | ||
| # and secrets from environment variables or elsewhere. Do not define | ||
| # any compile-time configuration in here, as it won't be applied. | ||
| # The block below contains prod specific runtime configuration. | ||
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| # ## Using releases | ||
| # | ||
| # If you use `mix release`, you need to explicitly enable the server | ||
| # by passing the PHX_SERVER=true when you start it: | ||
| # | ||
| # PHX_SERVER=true bin/app start | ||
| # | ||
| # Alternatively, you can use `mix phx.gen.release` to generate a `bin/server` | ||
| # script that automatically sets the env var above. | ||
| if System.get_env("PHX_SERVER") do | ||
| config :app, AppWeb.Endpoint, server: true | ||
| end | ||
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| if config_env() == :prod do | ||
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| maybe_ipv6 = if System.get_env("ECTO_IPV6"), do: [:inet6], else: [] | ||
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| config :app, App.Repo, | ||
| # ssl: true, | ||
| pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10"), | ||
| socket_options: maybe_ipv6 | ||
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| # The secret key base is used to sign/encrypt cookies and other secrets. | ||
| # A default value is used in config/dev.exs and config/test.exs but you | ||
| # want to use a different value for prod and you most likely don't want | ||
| # to check this value into version control, so we use an environment | ||
| # variable instead. | ||
| secret_key_base = | ||
| System.get_env("SECRET_KEY_BASE") || | ||
| raise """ | ||
| environment variable SECRET_KEY_BASE is missing. | ||
| You can generate one by calling: mix phx.gen.secret | ||
| """ | ||
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| host = System.get_env("PHX_HOST") || "example.com" | ||
| port = String.to_integer(System.get_env("PORT") || "4000") | ||
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| config :app, AppWeb.Endpoint, | ||
| url: [host: host, port: 443, scheme: "https"], | ||
| http: [ | ||
| # Enable IPv6 and bind on all interfaces. | ||
| # Set it to {0, 0, 0, 0, 0, 0, 0, 1} for local network only access. | ||
| # See the documentation on https://hexdocs.pm/plug_cowboy/Plug.Cowboy.html | ||
| # for details about using IPv6 vs IPv4 and loopback vs public addresses. | ||
| ip: {0, 0, 0, 0, 0, 0, 0, 0}, | ||
| port: port | ||
| ], | ||
| secret_key_base: secret_key_base | ||
| end |
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