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refactor(tdx_google): simplify service configurations

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- Replaced hardcoded metadata-fetching logic with shared metadata service.
- Removed custom pre-start scripts and refactored environment handling.
- Updated Vector configuration to include custom field transformations.
- Streamlined container startup process and ensured proper cleanup.

Signed-off-by: Harald Hoyer <harald@matterlabs.dev>
This commit is contained in:
Harald Hoyer 2025-02-19 11:01:25 +01:00
parent 5d2ad57cfd
commit 760ff7eff1
Signed by: harald
GPG key ID: F519A1143B3FBE32
4 changed files with 98 additions and 52 deletions
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45
packages/tdx_google/container.nix
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@ -8,46 +8,29 @@
systemd.services.docker_start_container = {
description = "The main application container";
wantedBy = [ "multi-user.target" ];
after = [ "network-online.target" "docker.service" "vector.service" "chronyd.service" ];
requires = [ "network-online.target" "docker.service" "vector.service" ];
after = [ "network-online.target" "docker.service" "vector.service" "chronyd.service" "metadata.service" ];
requires = [ "network-online.target" "docker.service" "vector.service" "metadata.service" ];
serviceConfig = {
Type = "exec";
User = "root";
EnvironmentFile = "-/run/container/env";
ExecStartPre = "+" + toString (
pkgs.writeShellScript "container-start-pre" ''
set -eu -o pipefail
: "''${CONTAINER_IMAGE:=$(curl --silent --fail "http://metadata.google.internal/computeMetadata/v1/instance/attributes/container_image" -H "Metadata-Flavor: Google")}"
: "''${CONTAINER_HUB:=$(curl --silent --fail "http://metadata.google.internal/computeMetadata/v1/instance/attributes/container_hub" -H "Metadata-Flavor: Google")}"
: "''${CONTAINER_USER:=$(curl --silent --fail "http://metadata.google.internal/computeMetadata/v1/instance/attributes/container_user" -H "Metadata-Flavor: Google")}"
: "''${CONTAINER_TOKEN:=$(curl --silent --fail "http://metadata.google.internal/computeMetadata/v1/instance/attributes/container_token" -H "Metadata-Flavor: Google")}"
: "''${CONTAINER_IMAGE:?Error: Missing CONTAINER_IMAGE}"
: "''${CONTAINER_HUB:?Error: Missing CONTAINER_HUB}"
mkdir -p /run/container
cat >/run/container/env <<EOF
CONTAINER_IMAGE="''${CONTAINER_IMAGE}"
CONTAINER_HUB="''${CONTAINER_HUB}"
CONTAINER_USER="''${CONTAINER_USER}"
CONTAINER_TOKEN="''${CONTAINER_TOKEN}"
EOF
''
);
EnvironmentFile = "-/run/env/env";
};
path = [ pkgs.curl pkgs.docker pkgs.teepot.teepot.tdx_extend pkgs.coreutils ];
path = [ pkgs.docker pkgs.teepot.teepot.tdx_extend ];
script = ''
set -eu -o pipefail
if [[ $CONTAINER_USER ]] && [[ $CONTAINER_TOKEN ]]; then
docker login -u "$CONTAINER_USER" -p "$CONTAINER_TOKEN" "$CONTAINER_HUB"
fi
docker pull "''${CONTAINER_HUB}/''${CONTAINER_IMAGE}"
DIGEST=$(docker inspect --format '{{.Id}}' "''${CONTAINER_HUB}/''${CONTAINER_IMAGE}")
DIGEST=''${DIGEST#sha256:}
DIGEST=''${CONTAINER_DIGEST#sha256:}
echo "Measuring $DIGEST" >&2
test -c /dev/tdx_guest && tdx-extend --digest "$DIGEST" --rtmr 3
exec docker run --env "GOOGLE_METADATA=1" --network=host --init --privileged "sha256:$DIGEST"
docker run -d --rm \
--name tdx_container \
--env "GOOGLE_METADATA=1" \
--network=host \
--init \
--privileged \
"sha256:$DIGEST"
exec docker wait tdx_container
'';
postStop = lib.mkDefault ''