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Merged
merged 1 commit into from
Jan 7, 2025
Merged

Multi-layer image with static assets and binary #50

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55 changes: 55 additions & 0 deletions flake.lock
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5 changes: 5 additions & 0 deletions flake.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,11 @@
plutarch = {
url = "github:colll78/plutarch-plutus/b2379767c7f1c70acf28206bf922f128adc02f28";
};

n2c = {
url = "github:nlewo/nix2container";
inputs.nixpkgs.follows = "nixpkgs";
};
};

outputs = inputs: inputs.iogx.lib.mkFlake {
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10 changes: 10 additions & 0 deletions generated/html/index.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
<!doctype html>
<html>
<head>
<title>Placeholder title!</title>
</head>
<body>
<p>Placeholder for generated/html/index.html</p>
</body>
</html>

78 changes: 69 additions & 9 deletions nix/containers.nix
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Original file line number Diff line number Diff line change
@@ -1,18 +1,78 @@
{ repoRoot, inputs, pkgs, lib, system }:
{
{ repoRoot, inputs, pkgs, lib, system }: let

staticFilesDerivation = pkgs.stdenv.mkDerivation {
name = "staticFiles";
src = ../generated;
unpackPhase = "true";
installPhase = ''
ls -alh "$src"
mkdir -p "$out"
cp -r $src/html $out
ls -alh $out
'';
};

staticFiles = pkgs.buildEnv {
name = "staticFiles";
paths = [
# the actual payload we want
staticFilesDerivation
# allow interactivity with the image
pkgs.bashInteractive
pkgs.coreutils
];
pathsToLink = [ "/html" "/bin" ];
extraOutputsToInstall = [ "/html" ];
};

in rec {

# Builds a docker container for the cabal executable given as input. First we
# build the container json itself. Note the explicit architecture.
#
# $ nix build .#containers.x86_64-linux.wst
# NOTE: The following commands produce a nice test environment for the container
# Build via nix first
#
#$ nix build --accept-flake-config .#containers.x86_64-linux.wst.copyTo
#
# Instead of generating a container, generate into a directory
#
#$ ./result/bin/copy-to dir:./tmp
#
# Now we can run the container (the tx is just some random I copied from the explorer)
#$ podman run --publish 8080:8080 --env WST_BLOCKFROST_TOKEN=REPLACE_ME_APIKEY dir:./tmp manage 76e2cfb0b087873ef50a3f709fa6ab3df21bdd5b67c1254837cc353613524251.0 start --static-files /html
#
# NOTE: To build the oci container image run:
#
wst = lib.iogx.mkContainerFromCabalExe {
exe = inputs.self.packages.wst-poc-cli;
name = "wst-poc";
description = "WST Proof of Concept";
packages = [ ];
sourceUrl = "https://github.com/input-output-hk/wsc-poc";
#$ ./result/bin/copy-to oci-archive:oci.tar
#
wst = inputs.n2c.packages.nix2container.buildImage {
name = "wst";
config = {
Entrypoint = lib.singleton (lib.getExe inputs.self.packages.wst-poc-cli);
};
layers = [
(inputs.n2c.packages.nix2container.buildLayer {
copyToRoot = [staticFiles];
})
];
};

# NOTE: I don't think iogx.mkContainerFromCabalExe enables linking in the base image correctly. Hence the more manual construction above.
# TODO: Consider patching iogx if that is the case?

# Builds a docker container for the cabal executable given as input. First we
# build the container json itself. Note the explicit architecture.
#
# $ nix build .#containers.x86_64-linux.wstBinary
#
# wstBinary = lib.iogx.mkContainerFromCabalExe {
# exe = inputs.self.packages.wst-poc-cli;
# name = "wst-poc";
# description = "WST Proof of Concept";
# # packages = [ staticFiles staticFilesDerivation ];
# sourceUrl = "https://github.com/input-output-hk/wsc-poc";
# };

}

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