dpone-airflow-pack
dpone-airflow-pack is the lightweight, Airflow-independent reader and DAG
construction library for dpone GitOps packs. The formal
apache-airflow-providers-dpone distribution owns provider discovery and the
canonical airflow.providers.dpone namespace.
It only reads a static airflow-pack.json and builds visible Airflow/Kubernetes tasks. It does not import the full
dpone runtime and intentionally contains no source/sink/native transfer dependencies such as ClickHouse, MSSQL,
pyodbc, pandas, polars, or ConnectorX.
Recommended zero-boilerplate Airflow DAG import:
from airflow.providers.dpone import load_and_acknowledge_dpone_dags
loaded = load_and_acknowledge_dpone_dags(
globals(),
index_path="/opt/airflow/.dpone-cache/current/airflow-index.json",
ack_path="/opt/airflow/.dpone-ack/loader-ack.json",
ack_root="/opt/airflow/.dpone-ack",
)
if loaded.report.fatal:
error_code = (
loaded.report.errors[0].get("code", "DPONE_AIRFLOW_INDEX_INVALID")
if loaded.report.errors
else "DPONE_AIRFLOW_INDEX_INVALID"
)
raise RuntimeError(
f"{error_code}: dpone Airflow deployment index could not be loaded"
)
The formal provider's canonical namespace is PEP 561 typed.
DponeDag.from_spec(...) and
DponeTaskGroup.from_pack(...) remain typed escape hatches for hybrid DAGs.
The old dpone_airflow_pack imports remain compatibility shims and emit one
deprecation warning per process for provider-facade objects.
For the complete import, generated-loader, and cache-layout cutover, follow the provider and cache migration guide. Legacy watcher output, exit codes, retention, and recovery are documented in legacy pack cache operations.
Legacy installations that still consume a mutable remote
latest/pack-index.json may keep the compatibility sync temporarily:
set -euo pipefail
dpone-airflow-pack-sync \
--once \
--index-uri s3://bucket/dpone-artifacts/prod/repo/latest/pack-index.json \
--reader-connection-id s3_dpone_artifacts_reader \
--cache-dir /opt/airflow/.dpone-legacy-pack-cache
dpone-airflow-pack-cache-status \
--cache-dir /opt/airflow/.dpone-legacy-pack-cache \
--json
# Exact desired-state cache (airflow-index.json under current/):
dpone-airflow-pack-cache-status \
--cache-dir /opt/airflow/.dpone-cache \
--ack-path /opt/airflow/.dpone-ack/loader-ack.json \
--ack-root /opt/airflow/.dpone-ack \
--json
An infrastructure-owned projector may additionally pass
--airflow-variable-key dpone_airflow_pack_cache_status. The publication is
diagnostic, bounded to 1 MiB and fail-open; local cache/ACK bytes remain the
authority.
The loader reads only the local composite deployment index and its listed checksum-verified DAG specs/packs. It does not scan authoring sources, refresh a remote cache, or read Airflow Variables, Connections, Vault, Kubernetes, or a metadata database during parse.
Official Helm chart ACK isolation
The official Airflow Helm chart propagates component-level volume mounts to
auxiliary containers. Use Helm 3.19.0 or newer in the Helm 3 release line and
the package post-renderer for exact-cache profiles:
For a published release, replace X.Y.Z with a version that exists on PyPI.
Before release, install the exact candidate wheel produced from the reviewed
commit and verify the values through the same immutable CI evidence. Never
combine a wheel and values from different commits.
set -euo pipefail
DPONE_VERSION=X.Y.Z
: "${DPONE_RELEASE_SOURCE_COMMIT:?set the attested 40-hex source commit for this release}"
case "${DPONE_RELEASE_SOURCE_COMMIT}" in
*[!0-9a-f]*|'') printf 'DPONE_RELEASE_SOURCE_COMMIT must be lowercase hex\n' >&2; exit 2 ;;
esac
[ "${#DPONE_RELEASE_SOURCE_COMMIT}" -eq 40 ] || exit 2
: "${AIRFLOW_VERSION:?set the certified Airflow version}"
case "${AIRFLOW_VERSION}" in
2.10.5) PROFILE=airflow-cache-values-2.10.yaml; CHART_VERSION=1.19.0 ;;
3.2.0) PROFILE=airflow-cache-values-3.2.yaml; CHART_VERSION=1.22.0 ;;
*) printf 'AIRFLOW_VERSION is not certified by this profile set\n' >&2; exit 2 ;;
esac
release_dir="$(mktemp -d dpone-airflow-release.XXXXXX)"
trap 'rm -rf "${release_dir}"' EXIT
python3 -m pip download --no-deps --only-binary=:all: \
--dest "${release_dir}" "dpone-airflow-pack==${DPONE_VERSION}"
release_wheel="$(find "${release_dir}" -maxdepth 1 -type f -name 'dpone_airflow_pack-*.whl' -print -quit)"
[ -n "${release_wheel}" ]
gh attestation verify "${release_wheel}" \
--repo PaulKov/dpone \
--source-digest "${DPONE_RELEASE_SOURCE_COMMIT}" \
--format json >"${release_dir}/attestation-verification.json"
python3 -m pip install "${release_wheel}"
curl --disable --proto '=https' --tlsv1.2 --fail --location \
--output airflow-cache-values.yaml -- \
"https://raw.githubusercontent.com/PaulKov/dpone/${DPONE_RELEASE_SOURCE_COMMIT}/docs/examples/${PROFILE}"
sha256sum -- airflow-cache-values.yaml >airflow-cache-values.SHA256SUMS
sha256sum -c airflow-cache-values.SHA256SUMS
helm repo add apache-airflow https://airflow.apache.org --force-update
helm repo update apache-airflow
helm template airflow apache-airflow/airflow \
--version "${CHART_VERSION}" \
-f airflow-cache-values.yaml \
--post-renderer "$(command -v dpone-airflow-pack-helm-post-renderer)" \
> airflow.rendered.yaml
dpone-airflow-pack-helm-post-renderer --verify-only \
< airflow.rendered.yaml > /dev/null
Candidate checkout
For a candidate checkout, download the immutable dist-airflow artifact
produced by one successful airflow-pack-compat.yml run for the exact reviewed
commit. Its SHA256SUMS is the single binding set for the exact wheels and both
bundled Helm-values files. Install and copy the selected values only after every
entry verifies and the checksum set explicitly names each consumed file; no
byte is copied from the possibly dirty checkout:
set -euo pipefail
: "${DPONE_REVIEWED_CANDIDATE_SHA:?set the exact externally reviewed 40-hex commit}"
case "${DPONE_REVIEWED_CANDIDATE_SHA}" in
*[!0-9a-f]*|'') printf 'DPONE_REVIEWED_CANDIDATE_SHA must be lowercase hex\n' >&2; exit 2 ;;
esac
[ "${#DPONE_REVIEWED_CANDIDATE_SHA}" -eq 40 ] || exit 2
CANDIDATE_CHECKOUT="$(mktemp -d dpone-reviewed-source.XXXXXX)"
git -C "${CANDIDATE_CHECKOUT}" init -q
git -C "${CANDIDATE_CHECKOUT}" remote add origin https://github.com/PaulKov/dpone.git
git -C "${CANDIDATE_CHECKOUT}" fetch --quiet --depth 1 origin "${DPONE_REVIEWED_CANDIDATE_SHA}"
[ "$(git -C "${CANDIDATE_CHECKOUT}" rev-parse FETCH_HEAD)" = "${DPONE_REVIEWED_CANDIDATE_SHA}" ]
git -C "${CANDIDATE_CHECKOUT}" checkout --quiet --detach "${DPONE_REVIEWED_CANDIDATE_SHA}"
[ "$(git -C "${CANDIDATE_CHECKOUT}" rev-parse HEAD)" = "${DPONE_REVIEWED_CANDIDATE_SHA}" ]
DPONE_CANDIDATE_SHA="${DPONE_REVIEWED_CANDIDATE_SHA}"
: "${AIRFLOW_VERSION:?set the certified Airflow version}"
case "${AIRFLOW_VERSION}" in
2.10.5) PROFILE=airflow-cache-values-2.10.yaml; CHART_VERSION=1.19.0 ;;
3.2.0) PROFILE=airflow-cache-values-3.2.yaml; CHART_VERSION=1.22.0 ;;
*) printf 'AIRFLOW_VERSION is not certified by this profile set\n' >&2; exit 2 ;;
esac
RUN_ID="$(
gh run list \
--repo PaulKov/dpone \
--workflow airflow-pack-compat.yml \
--commit "${DPONE_CANDIDATE_SHA}" \
--status success \
--limit 1 \
--json databaseId \
--jq '.[0].databaseId'
)"
test -n "${RUN_ID}"
DIST_AIRFLOW="$(mktemp -d dpone-airflow-candidate.XXXXXX)"
HELM_EVIDENCE="$(mktemp -d "${TMPDIR:-/tmp}/dpone-airflow-helm-evidence.XXXXXX")"
CHART_DIR="$(mktemp -d "${TMPDIR:-/tmp}/dpone-airflow-chart.XXXXXX")"
trap 'rm -rf "${DIST_AIRFLOW}" "${HELM_EVIDENCE}" "${CHART_DIR}" "${CANDIDATE_CHECKOUT}"' EXIT
gh run download "${RUN_ID}" \
--repo PaulKov/dpone \
--name "airflow-distributions-${DPONE_CANDIDATE_SHA}" \
--dir "${DIST_AIRFLOW}"
gh run download "${RUN_ID}" \
--repo PaulKov/dpone \
--name "airflow-helm-ack-mounts-${DPONE_CANDIDATE_SHA}" \
--dir "${HELM_EVIDENCE}"
test "$(cat "${DIST_AIRFLOW}/SOURCE_COMMIT")" = "${DPONE_REVIEWED_CANDIDATE_SHA}"
test "$(cat "${HELM_EVIDENCE}/SOURCE_COMMIT")" = "${DPONE_REVIEWED_CANDIDATE_SHA}"
(cd "${DIST_AIRFLOW}" && sha256sum --check SHA256SUMS)
helm repo add apache-airflow https://airflow.apache.org --force-update
helm repo update apache-airflow
helm pull apache-airflow/airflow --version "${CHART_VERSION}" --destination "${CHART_DIR}"
awk -v chart="airflow-${CHART_VERSION}.tgz" '$2 == chart {print}' \
"${HELM_EVIDENCE}/CHART_SHA256SUMS" >"${CHART_DIR}/CHART_SHA256SUMS"
test "$(wc -l <"${CHART_DIR}/CHART_SHA256SUMS" | tr -d ' ')" -eq 1
(cd "${CHART_DIR}" && sha256sum -c "${HELM_EVIDENCE}/CHART_SHA256SUMS" \
--ignore-missing && test "$(sha256sum -c CHART_SHA256SUMS | grep -c ': OK$')" -eq 1)
checksum_covers() {
awk -v target="$1" '
{
name = $2
sub(/^\*/, "", name)
sub(/^\.\//, "", name)
if (name == target) found = 1
}
END { exit(found ? 0 : 1) }
' "${DIST_AIRFLOW}/SHA256SUMS"
}
core_wheels=("${DIST_AIRFLOW}"/dpone-*.whl)
pack_wheels=("${DIST_AIRFLOW}"/dpone_airflow_pack-*.whl)
provider_wheels=("${DIST_AIRFLOW}"/apache_airflow_providers_dpone-*.whl)
test "${#core_wheels[@]}" -eq 1
test "${#pack_wheels[@]}" -eq 1
test "${#provider_wheels[@]}" -eq 1
for required in "$(basename "${core_wheels[0]}")" \
"$(basename "${pack_wheels[0]}")" \
"$(basename "${provider_wheels[0]}")" \
airflow-cache-values-2.10.yaml airflow-cache-values-3.2.yaml; do
test -f "${DIST_AIRFLOW}/${required}"
checksum_covers "${required}"
done
values="${DIST_AIRFLOW}/${PROFILE}"
python3 -m pip install "${core_wheels[0]}[kubernetes]" \
"${pack_wheels[0]}" "${provider_wheels[0]}"
[ ! -e airflow-cache-values.yaml ] || { printf 'airflow-cache-values.yaml already exists\n' >&2; exit 3; }
[ ! -e "airflow-${CHART_VERSION}.tgz" ] || { printf 'reviewed chart artifact already exists\n' >&2; exit 3; }
[ ! -e airflow-chart.SHA256SUMS ] || { printf 'reviewed chart checksum already exists\n' >&2; exit 3; }
install -m 0444 "${values}" airflow-cache-values.yaml
install -m 0444 "${CHART_DIR}/airflow-${CHART_VERSION}.tgz" "airflow-${CHART_VERSION}.tgz"
install -m 0444 "${CHART_DIR}/CHART_SHA256SUMS" airflow-chart.SHA256SUMS
sha256sum -c airflow-chart.SHA256SUMS
helm template airflow "airflow-${CHART_VERSION}.tgz" \
-f airflow-cache-values.yaml \
--post-renderer "$(command -v dpone-airflow-pack-helm-post-renderer)" \
> airflow.rendered.yaml
dpone-airflow-pack-helm-post-renderer --verify-only \
< airflow.rendered.yaml > /dev/null
dist-airflow and airflow-helm-ack-mounts are the two immutable candidate
artifacts produced by the same exact-SHA compatibility run. Their source
bindings, wheel/profile checksums, selected official chart checksum and rendered
policy verification must all pass before the candidate is deployable. Preserve
the copied airflow-<chart>.tgz and airflow-chart.SHA256SUMS; the deployment
must use those exact bytes rather than resolving the repository again. This
candidate path is intentionally separate from the published-release command
above.
This is a render-only policy example, not a self-contained Airflow
installation. Its image references, exact desired-state authority ConfigMap,
wrapper ConfigMap and reader/projector Secrets are deliberately platform-owned
placeholders. Do not run helm upgrade until those resources and digest-pinned
images have been prepared and reviewed. The complete preparation, preflight,
deploy, observe and rollback procedure is in
Deploy the exact Airflow cache on Kubernetes.
It grants loader-ACK write access to exactly one parser container, grants the dpone watcher and status projector read-only access, and removes ACK mounts from migration, cache init, log-groomer and unrelated containers. A render without exactly one parser authority fails closed. See the full ACK mount policy.
Verification success reproduces the input manifest unchanged on stdout and
exits 0, as required by the Helm post-renderer contract. Redirect stdout to
/dev/null only for a standalone diagnostic invocation. Invalid or oversized
input writes DPONE_AIRFLOW_LOADER_ACK_MOUNT_INVALID to stderr and exits 2.
dpone-airflow-pack-cache-status --json writes bounded JSON to stdout and exits
1 when the cache is blocked.
Runtime pod lifecycle
Strict runtime tasks use get_logs=true and
on_finish_action=delete_succeeded_pod. Modern KubernetesPodOperator awaits
pod start before following base logs, so live runtime stdout appears in the
Airflow task log without the old PodInitializing race. Dpone KPO subclasses also
re-assert get_logs=true at execute time so a platform-only pack image roll
cannot leave Airflow 3 stuck on stale serialized get_logs=false when the DAG
file hash did not change. Structured XCom/runtime evidence remains the outcome
authority, and the platform must still certify a cluster log collector plus the
separately deployed stale-pod retention control described in
Retain and sweep dpone runtime pods.
This lightweight package never starts a Kubernetes janitor. The full dpone
distribution ships the plan/apply/render commands, while infrastructure must
review and deploy the rendered namespace-scoped CronJob explicitly.
For DAGs that should run a whole GitOps domain or a named workflow group, keep the grouping in the domain catalog and resolve it through the lightweight provider:
workflow_groups:
daily:
workload_ids:
- dim_customer
- fact_order
from dpone_airflow_pack import workload_ids_from_gitops_domain
workload_ids = workload_ids_from_gitops_domain(
repo_root,
"sales",
group="daily",
)
The resolver only reads YAML files and validates that every group member exists in the same domain catalog.
The full dpone[full,accel] package belongs in the KPO runtime image, not in the scheduler image.
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