Skip to content

Commit 5931207

Browse files
MattJacksonMattJackson
committed
busbar chart 0.1.0 — initial release
Production-grade Helm chart for busbar (the Rust LLM gateway): - Deployment (stateless) or StatefulSet+PVC (governance, single-writer SQLite) - the two Services busbar needs: public data plane (:8080) and a separate admin plane (:8081), loopback-by-default with a render-time boot-guard that fails unless the exposed admin plane has cert-manager mTLS or explicit insecure - ConfigMap (config.yaml + optional providers.yaml), Secret-injected ${VAR} keys - cert-manager admin mTLS, NetworkPolicy, HPA (data only), PDB, Ingress - hardened pod (non-root, read-only rootfs, drop ALL caps, seccomp RuntimeDefault) - chart-testing lint + kind smoke CI; chart-releaser publishing to gh-pages helm lint clean; renders validated for defaults, governance, admin+mTLS, admin+insecure, ingress+autoscaling, and the admin-without-mTLS guard.
0 parents  commit 5931207

27 files changed

Lines changed: 1653 additions & 0 deletions

‎.github/workflows/lint-test.yml‎

Lines changed: 48 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,48 @@
1+
name: Lint and Test Charts
2+
3+
on:
4+
pull_request:
5+
branches:
6+
- main
7+
8+
jobs:
9+
lint-test:
10+
runs-on: ubuntu-latest
11+
steps:
12+
- name: Checkout
13+
uses: actions/checkout@v4
14+
with:
15+
fetch-depth: 0
16+
17+
- name: Set up Helm
18+
uses: azure/setup-helm@v4
19+
with:
20+
version: v3.16.3
21+
22+
- name: Set up Python
23+
uses: actions/setup-python@v5
24+
with:
25+
python-version: "3.12"
26+
check-latest: true
27+
28+
- name: Set up chart-testing
29+
uses: helm/chart-testing-action@v2.7.0
30+
31+
- name: Run chart-testing (list-changed)
32+
id: list-changed
33+
run: |
34+
changed=$(ct list-changed --target-branch main)
35+
if [[ -n "$changed" ]]; then
36+
echo "changed=true" >> "$GITHUB_OUTPUT"
37+
fi
38+
39+
- name: Run chart-testing (lint)
40+
run: ct lint --target-branch main --check-version-increment=false
41+
42+
- name: Create kind cluster
43+
if: steps.list-changed.outputs.changed == 'true'
44+
uses: helm/kind-action@v1.12.0
45+
46+
- name: Run chart-testing (install)
47+
if: steps.list-changed.outputs.changed == 'true'
48+
run: ct install --target-branch main

‎.github/workflows/release.yml‎

Lines changed: 36 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,36 @@
1+
name: Release Charts
2+
3+
on:
4+
push:
5+
branches:
6+
- main
7+
8+
permissions:
9+
contents: write
10+
pages: write
11+
12+
jobs:
13+
release:
14+
runs-on: ubuntu-latest
15+
steps:
16+
- name: Checkout
17+
uses: actions/checkout@v4
18+
with:
19+
fetch-depth: 0
20+
21+
- name: Configure Git
22+
run: |
23+
git config user.name "$GITHUB_ACTOR"
24+
git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
25+
26+
- name: Set up Helm
27+
uses: azure/setup-helm@v4
28+
with:
29+
version: v3.16.3
30+
31+
- name: Run chart-releaser
32+
uses: helm/chart-releaser-action@v1.7.0
33+
with:
34+
charts_dir: charts
35+
env:
36+
CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

‎.gitignore‎

Lines changed: 17 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,17 @@
1+
# Packaged charts
2+
*.tgz
3+
charts/**/charts/
4+
charts/**/Chart.lock
5+
6+
# chart-releaser
7+
.cr-release-packages/
8+
.cr-index/
9+
10+
# Helm
11+
**/*.orig
12+
13+
# OS / editor
14+
.DS_Store
15+
*.swp
16+
.idea/
17+
.vscode/

‎LICENSE‎

Lines changed: 202 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,202 @@
1+
2+
Apache License
3+
Version 2.0, January 2004
4+
http://www.apache.org/licenses/
5+
6+
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
7+
8+
1. Definitions.
9+
10+
"License" shall mean the terms and conditions for use, reproduction,
11+
and distribution as defined by Sections 1 through 9 of this document.
12+
13+
"Licensor" shall mean the copyright owner or entity authorized by
14+
the copyright owner that is granting the License.
15+
16+
"Legal Entity" shall mean the union of the acting entity and all
17+
other entities that control, are controlled by, or are under common
18+
control with that entity. For the purposes of this definition,
19+
"control" means (i) the power, direct or indirect, to cause the
20+
direction or management of such entity, whether by contract or
21+
otherwise, or (ii) ownership of fifty percent (50%) or more of the
22+
outstanding shares, or (iii) beneficial ownership of such entity.
23+
24+
"You" (or "Your") shall mean an individual or Legal Entity
25+
exercising permissions granted by this License.
26+
27+
"Source" form shall mean the preferred form for making modifications,
28+
including but not limited to software source code, documentation
29+
source, and configuration files.
30+
31+
"Object" form shall mean any form resulting from mechanical
32+
transformation or translation of a Source form, including but
33+
not limited to compiled object code, generated documentation,
34+
and conversions to other media types.
35+
36+
"Work" shall mean the work of authorship, whether in Source or
37+
Object form, made available under the License, as indicated by a
38+
copyright notice that is included in or attached to the work
39+
(an example is provided in the Appendix below).
40+
41+
"Derivative Works" shall mean any work, whether in Source or Object
42+
form, that is based on (or derived from) the Work and for which the
43+
editorial revisions, annotations, elaborations, or other modifications
44+
represent, as a whole, an original work of authorship. For the purposes
45+
of this License, Derivative Works shall not include works that remain
46+
separable from, or merely link (or bind by name) to the interfaces of,
47+
the Work and Derivative Works thereof.
48+
49+
"Contribution" shall mean any work of authorship, including
50+
the original version of the Work and any modifications or additions
51+
to that Work or Derivative Works thereof, that is intentionally
52+
submitted to Licensor for inclusion in the Work by the copyright owner
53+
or by an individual or Legal Entity authorized to submit on behalf of
54+
the copyright owner. For the purposes of this definition, "submitted"
55+
means any form of electronic, verbal, or written communication sent
56+
to the Licensor or its representatives, including but not limited to
57+
communication on electronic mailing lists, source code control systems,
58+
and issue tracking systems that are managed by, or on behalf of, the
59+
Licensor for the purpose of discussing and improving the Work, but
60+
excluding communication that is conspicuously marked or otherwise
61+
designated in writing by the copyright owner as "Not a Contribution."
62+
63+
"Contributor" shall mean Licensor and any individual or Legal Entity
64+
on behalf of whom a Contribution has been received by Licensor and
65+
subsequently incorporated within the Work.
66+
67+
2. Grant of Copyright License. Subject to the terms and conditions of
68+
this License, each Contributor hereby grants to You a perpetual,
69+
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
70+
copyright license to reproduce, prepare Derivative Works of,
71+
publicly display, publicly perform, sublicense, and distribute the
72+
Work and such Derivative Works in Source or Object form.
73+
74+
3. Grant of Patent License. Subject to the terms and conditions of
75+
this License, each Contributor hereby grants to You a perpetual,
76+
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
77+
(except as stated in this section) patent license to make, have made,
78+
use, offer to sell, sell, import, and otherwise transfer the Work,
79+
where such license applies only to those patent claims licensable
80+
by such Contributor that are necessarily infringed by their
81+
Contribution(s) alone or by combination of their Contribution(s)
82+
with the Work to which such Contribution(s) was submitted. If You
83+
institute patent litigation against any entity (including a
84+
cross-claim or counterclaim in a lawsuit) alleging that the Work
85+
or a Contribution incorporated within the Work constitutes direct
86+
or contributory patent infringement, then any patent licenses
87+
granted to You under this License for that Work shall terminate
88+
as of the date such litigation is filed.
89+
90+
4. Redistribution. You may reproduce and distribute copies of the
91+
Work or Derivative Works thereof in any medium, with or without
92+
modifications, and in Source or Object form, provided that You
93+
meet the following conditions:
94+
95+
(a) You must give any other recipients of the Work or
96+
Derivative Works a copy of this License; and
97+
98+
(b) You must cause any modified files to carry prominent notices
99+
stating that You changed the files; and
100+
101+
(c) You must retain, in the Source form of any Derivative Works
102+
that You distribute, all copyright, patent, trademark, and
103+
attribution notices from the Source form of the Work,
104+
excluding those notices that do not pertain to any part of
105+
the Derivative Works; and
106+
107+
(d) If the Work includes a "NOTICE" text file as part of its
108+
distribution, then any Derivative Works that You distribute must
109+
include a readable copy of the attribution notices contained
110+
within such NOTICE file, excluding those notices that do not
111+
pertain to any part of the Derivative Works, in at least one
112+
of the following places: within a NOTICE text file distributed
113+
as part of the Derivative Works; within the Source form or
114+
documentation, if provided along with the Derivative Works; or,
115+
within a display generated by the Derivative Works, if and
116+
wherever such third-party notices normally appear. The contents
117+
of the NOTICE file are for informational purposes only and
118+
do not modify the License. You may add Your own attribution
119+
notices within Derivative Works that You distribute, alongside
120+
or as an addendum to the NOTICE text from the Work, provided
121+
that such additional attribution notices cannot be construed
122+
as modifying the License.
123+
124+
You may add Your own copyright statement to Your modifications and
125+
may provide additional or different license terms and conditions
126+
for use, reproduction, or distribution of Your modifications, or
127+
for any such Derivative Works as a whole, provided Your use,
128+
reproduction, and distribution of the Work otherwise complies with
129+
the conditions stated in this License.
130+
131+
5. Submission of Contributions. Unless You explicitly state otherwise,
132+
any Contribution intentionally submitted for inclusion in the Work
133+
by You to the Licensor shall be under the terms and conditions of
134+
this License, without any additional terms or conditions.
135+
Notwithstanding the above, nothing herein shall supersede or modify
136+
the terms of any separate license agreement you may have executed
137+
with Licensor regarding such Contributions.
138+
139+
6. Trademarks. This License does not grant permission to use the trade
140+
names, trademarks, service marks, or product names of the Licensor,
141+
except as required for reasonable and customary use in describing the
142+
origin of the Work and reproducing the content of the NOTICE file.
143+
144+
7. Disclaimer of Warranty. Unless required by applicable law or
145+
agreed to in writing, Licensor provides the Work (and each
146+
Contributor provides its Contributions) on an "AS IS" BASIS,
147+
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
148+
implied, including, without limitation, any warranties or conditions
149+
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
150+
PARTICULAR PURPOSE. You are solely responsible for determining the
151+
appropriateness of using or redistributing the Work and assume any
152+
risks associated with Your exercise of permissions under this License.
153+
154+
8. Limitation of Liability. In no event and under no legal theory,
155+
whether in tort (including negligence), contract, or otherwise,
156+
unless required by applicable law (such as deliberate and grossly
157+
negligent acts) or agreed to in writing, shall any Contributor be
158+
liable to You for damages, including any direct, indirect, special,
159+
incidental, or consequential damages of any character arising as a
160+
result of this License or out of the use or inability to use the
161+
Work (including but not limited to damages for loss of goodwill,
162+
work stoppage, computer failure or malfunction, or any and all
163+
other commercial damages or losses), even if such Contributor
164+
has been advised of the possibility of such damages.
165+
166+
9. Accepting Warranty or Additional Liability. While redistributing
167+
the Work or Derivative Works thereof, You may choose to offer,
168+
and charge a fee for, acceptance of support, warranty, indemnity,
169+
or other liability obligations and/or rights consistent with this
170+
License. However, in accepting such obligations, You may act only
171+
on Your own behalf and on Your sole responsibility, not on behalf
172+
of any other Contributor, and only if You agree to indemnify,
173+
defend, and hold each Contributor harmless for any liability
174+
incurred by, or claims asserted against, such Contributor by reason
175+
of your accepting any such warranty or additional liability.
176+
177+
END OF TERMS AND CONDITIONS
178+
179+
APPENDIX: How to apply the Apache License to your work.
180+
181+
To apply the Apache License to your work, attach the following
182+
boilerplate notice, with the fields enclosed by brackets "[]"
183+
replaced with your own identifying information. (Don't include
184+
the brackets!) The text should be enclosed in the appropriate
185+
comment syntax for the file format. We also recommend that a
186+
file or class name and description of purpose be included on the
187+
same "printed page" as the copyright notice for easier
188+
identification within third-party archives.
189+
190+
Copyright 2026 Busbar, Inc.
191+
192+
Licensed under the Apache License, Version 2.0 (the "License");
193+
you may not use this file except in compliance with the License.
194+
You may obtain a copy of the License at
195+
196+
http://www.apache.org/licenses/LICENSE-2.0
197+
198+
Unless required by applicable law or agreed to in writing, software
199+
distributed under the License is distributed on an "AS IS" BASIS,
200+
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
201+
See the License for the specific language governing permissions and
202+
limitations under the License.

‎README.md‎

Lines changed: 47 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,47 @@
1+
# busbar Helm charts
2+
3+
The official Helm chart repository for [busbar](https://getbusbar.com), a Rust LLM gateway.
4+
5+
## Usage
6+
7+
```console
8+
helm repo add busbar https://getbusbar.github.io/helm-charts
9+
helm repo update
10+
helm install my-busbar busbar/busbar
11+
```
12+
13+
See the [chart README](charts/busbar/README.md) for the full values reference and examples.
14+
15+
## The two-listener model
16+
17+
busbar always runs **two separate listeners**:
18+
19+
- **Data plane** (`0.0.0.0:8080`) — public LLM proxy traffic. Fronted by a `ClusterIP` Service and,
20+
optionally, an Ingress.
21+
- **Admin plane** (`admin_listen`, default loopback `127.0.0.1:8081`) — the runtime admin API.
22+
23+
busbar enforces a **boot-guard**: a non-loopback `admin_listen` *refuses to boot* unless the admin
24+
listener requires **mTLS** (`admin_tls` with a `client_ca_file`) **or** an explicit `admin_insecure:
25+
true` waiver is set.
26+
27+
The chart is secure by default: the admin plane stays on loopback and is **not** exposed, so
28+
`helm install my-busbar busbar/busbar` always boots. To expose the admin plane (`service.admin.enabled=true`)
29+
you must also enable `adminTLS.enabled=true` (mTLS, ideally via cert-manager) or `adminInsecure=true`,
30+
or the chart fails the render with a clear message.
31+
32+
## Governance
33+
34+
With `governance.enabled=true`, busbar owns a single-writer SQLite DB, so the chart deploys a
35+
**StatefulSet with a PVC and `replicas: 1`**. Horizontal scale of a shared SQLite governance store is
36+
not supported. Stateless (no-governance) deployments use a Deployment and support the HPA.
37+
38+
## Contributing
39+
40+
Charts live under `charts/`. Pull requests are linted and smoke-tested with
41+
[chart-testing](https://github.com/helm/chart-testing) against a [kind](https://kind.sigs.k8s.io)
42+
cluster. On merge to `main`, [chart-releaser](https://github.com/helm/chart-releaser) packages the
43+
chart and publishes it to the `gh-pages` branch / GitHub Pages.
44+
45+
## License
46+
47+
[Apache-2.0](LICENSE) © Busbar, Inc.

‎charts/busbar/.helmignore‎

Lines changed: 19 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,19 @@
1+
# Patterns to ignore when building packages.
2+
.DS_Store
3+
.git/
4+
.gitignore
5+
.bzr/
6+
.hg/
7+
.hgignore
8+
.svn/
9+
*.swp
10+
*.bak
11+
*.tmp
12+
*.orig
13+
*~
14+
.project
15+
.idea/
16+
*.tmproj
17+
.vscode/
18+
ci/
19+
*.tgz

0 commit comments

Comments
 (0)