58bbffded4
At a high level, it switches us to a distroless base container image, but that also includes several related bits:
- Add a writable /tmp but make the rest of our filesystems read-only at runtime.
- Condense our main server binaries into a single pinniped-server binary. This saves a bunch of space in
the image due to duplicated library code. The correct behavior is dispatched based on `os.Args[0]`, and
the `pinniped-server` binary is symlinked to `pinniped-concierge` and `pinniped-supervisor`.
- Strip debug symbols from our binaries. These aren't really useful in a distroless image anyway and all the
normal stuff you'd expect to work, such as stack traces, still does.
- Add a separate `pinniped-concierge-kube-cert-agent` binary with "sleep" and "print" functionality instead of
using builtin /bin/sleep and /bin/cat for the kube-cert-agent. This is split from the main server binary
because the loading/init time of the main server binary was too large for the tiny resource footprint we
established in our kube-cert-agent PodSpec. Using a separate binary eliminates this issue and the extra
binary adds only around 1.5MiB of image size.
- Switch the kube-cert-agent code to use a JSON `{"tls.crt": "<b64 cert>", "tls.key": "<b64 key>"}` format.
This is more robust to unexpected input formatting than the old code, which simply concatenated the files
with some extra newlines and split on whitespace.
- Update integration tests that made now-invalid assumptions about the `pinniped-server` image.
Signed-off-by: Matt Moyer <moyerm@vmware.com>
84 lines
2.1 KiB
YAML
84 lines
2.1 KiB
YAML
#! Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
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#! SPDX-License-Identifier: Apache-2.0
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#@ load("@ytt:data", "data")
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---
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apiVersion: v1
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kind: Namespace
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metadata:
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name: local-user-authenticator
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labels:
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name: local-user-authenticator
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: local-user-authenticator
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namespace: local-user-authenticator
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---
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#@ if data.values.image_pull_dockerconfigjson and data.values.image_pull_dockerconfigjson != "":
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apiVersion: v1
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kind: Secret
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metadata:
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name: image-pull-secret
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namespace: local-user-authenticator
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labels:
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app: local-user-authenticator
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type: kubernetes.io/dockerconfigjson
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data:
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.dockerconfigjson: #@ data.values.image_pull_dockerconfigjson
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#@ end
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: local-user-authenticator
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namespace: local-user-authenticator
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labels:
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app: local-user-authenticator
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: local-user-authenticator
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template:
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metadata:
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labels:
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app: local-user-authenticator
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spec:
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securityContext:
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runAsUser: #@ data.values.run_as_user
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runAsGroup: #@ data.values.run_as_group
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serviceAccountName: local-user-authenticator
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#@ if data.values.image_pull_dockerconfigjson and data.values.image_pull_dockerconfigjson != "":
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imagePullSecrets:
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- name: image-pull-secret
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#@ end
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containers:
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- name: local-user-authenticator
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#@ if data.values.image_digest:
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image: #@ data.values.image_repo + "@" + data.values.image_digest
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#@ else:
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image: #@ data.values.image_repo + ":" + data.values.image_tag
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#@ end
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imagePullPolicy: IfNotPresent
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command:
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- local-user-authenticator
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: local-user-authenticator
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namespace: local-user-authenticator
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labels:
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app: local-user-authenticator
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spec:
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type: ClusterIP
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selector:
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app: local-user-authenticator
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ports:
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- protocol: TCP
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port: 443
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targetPort: 8443
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