airship/airshipctl
Code Issues Proposed changes

Introduce Replacement Transformer plugin container

Browse Source 
Relates-To: #341
Change-Id: I65a5b8cf3bcf94321fc02f240b1d8075bca45c0c
This commit is contained in:
Dmitry Ukov 2020-10-09 18:06:21 +04:00
parent d9206c2121
commit d783d71f05
18 changed files with 354 additions and 60 deletions
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6
Dockerfile
View File

@ -28,6 +28,8 @@ ARG MAKE_TARGET=build
RUN for target in $MAKE_TARGET; do make $target; done
FROM ${RELEASE_IMAGE} as release
COPY --from=builder /usr/src/airshipctl/bin/airshipctl /usr/local/bin/airshipctl
ARG BINARY=airshipctl
ENV BINARY=${BINARY}
COPY --from=builder /usr/src/airshipctl/bin/${BINARY} /usr/local/bin/${BINARY}
USER 65534
ENTRYPOINT [ "/usr/local/bin/airshipctl" ]
ENTRYPOINT /usr/local/bin/${BINARY}

60
Makefile
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@ -40,6 +40,21 @@ PROXY ?= http://proxy.foo.com:8000
NO_PROXY ?= localhost,127.0.0.1,.svc.cluster.local
USE_PROXY ?= false
# docker build flags
DOCKER_CMD_FLAGS := --network=host
DOCKER_CMD_FLAGS += --force-rm=$(DOCKER_FORCE_CLEAN)
DOCKER_PROXY_FLAGS := --build-arg http_proxy=$(PROXY)
DOCKER_PROXY_FLAGS += --build-arg https_proxy=$(PROXY)
DOCKER_PROXY_FLAGS += --build-arg HTTP_PROXY=$(PROXY)
DOCKER_PROXY_FLAGS += --build-arg HTTPS_PROXY=$(PROXY)
DOCKER_PROXY_FLAGS += --build-arg no_proxy=$(NO_PROXY)
DOCKER_PROXY_FLAGS += --build-arg NO_PROXY=$(NO_PROXY)
ifeq ($(USE_PROXY), true)
DOCKER_CMD_FLAGS += $(DOCKER_PROXY_FLAGS)
endif
# Godoc server options
GD_PORT ?= 8080
@ -52,6 +67,15 @@ export KIND_URL ?= https://kind.sigs.k8s.io/dl/v0.8.1/kind-$(UNAME)-amd64
KUBECTL_VERSION ?= v1.18.6
export KUBECTL_URL ?= https://storage.googleapis.com/kubernetes-release/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl
# Plugins options
PLUGINS_DIR := krm-functions
PLUGINS := $(subst $(PLUGINS_DIR)/,,$(wildcard $(PLUGINS_DIR)/*))
PLUGINS_IMAGE_TGT := $(foreach tgt,$(PLUGINS),docker-image-$(tgt))
PLUGINS_BASE_IMAGE ?= alpine:3.12.0
$(PLUGINS):
@CGO_ENABLED=0 go build -o $(BINDIR)/$@ $(GO_FLAGS) ./$(PLUGINS_DIR)/$@/
.PHONY: depend
depend:
@go mod download
@ -106,32 +130,30 @@ golint:
.PHONY: images
images: docker-image
images: $(PLUGINS_IMAGE_TGT)
.PHONY: docker-image
docker-image:
ifeq ($(USE_PROXY), true)
@docker build . --network=host \
--build-arg http_proxy=$(PROXY) \
--build-arg https_proxy=$(PROXY) \
--build-arg HTTP_PROXY=$(PROXY) \
--build-arg HTTPS_PROXY=$(PROXY) \
--build-arg no_proxy=$(NO_PROXY) \
--build-arg NO_PROXY=$(NO_PROXY) \
--build-arg MAKE_TARGET=$(DOCKER_MAKE_TARGET) \
--tag $(DOCKER_IMAGE) \
--target $(DOCKER_TARGET_STAGE) \
--force-rm=$(DOCKER_FORCE_CLEAN)
else
@docker build . --network=host \
--build-arg MAKE_TARGET=$(DOCKER_MAKE_TARGET) \
--tag $(DOCKER_IMAGE) \
--target $(DOCKER_TARGET_STAGE) \
--force-rm=$(DOCKER_FORCE_CLEAN)
endif
@docker build . $(DOCKER_CMD_FLAGS) \
--target $(DOCKER_TARGET_STAGE) \
--build-arg MAKE_TARGET=$(DOCKER_MAKE_TARGET) \
--tag $(DOCKER_IMAGE)
ifeq ($(PUBLISH), true)
@docker push $(DOCKER_IMAGE)
endif
.PHONY: $(PLUGINS_IMAGE_TGT)
$(PLUGINS_IMAGE_TGT):
$(eval plugin_name=$(subst docker-image-,,$@))
@docker build . $(DOCKER_CMD_FLAGS) \
--target $(DOCKER_TARGET_STAGE) \
--build-arg MAKE_TARGET=$(plugin_name) \
--build-arg BINARY=$(plugin_name) \
--build-arg RELEASE_IMAGE=$(PLUGINS_BASE_IMAGE) \
--tag $(DOCKER_REGISTRY)/$(DOCKER_IMAGE_PREFIX)/$(plugin_name):$(DOCKER_IMAGE_TAG)
ifeq ($(PUBLISH), true)
@docker push $(DOCKER_REGISTRY)/$(DOCKER_IMAGE_PREFIX)/$(plugin_name):$(DOCKER_IMAGE_TAG)
endif
.PHONY: print-docker-image-tag
print-docker-image-tag:

11
krm-functions/replacement-transformer/Dockerfile.sample Normal file
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@ -0,0 +1,11 @@
FROM golang:1.13-stretch as builder
ENV CGO_ENABLED=0
WORKDIR /go/src/
COPY image/go.mod .
RUN go mod download
COPY main.go .
RUN go build -v -o /usr/local/bin/config-function ./
FROM alpine:latest
COPY --from=builder /usr/local/bin/config-function /usr/local/bin/config-function
CMD ["/usr/local/bin/config-function"]

78
krm-functions/replacement-transformer/Makefile Normal file
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@ -0,0 +1,78 @@
.PHONY: generate license fix vet fmt test build tidy image
SHELL := /bin/bash
GOBIN := $(shell go env GOPATH)/bin
# docker image options
DOCKER_REGISTRY ?= quay.io
DOCKER_IMAGE_NAME ?= replacement-transformer
DOCKER_IMAGE_PREFIX ?= airshipit
DOCKER_IMAGE_TAG ?= dev
DOCKER_IMAGE ?= $(DOCKER_REGISTRY)/$(DOCKER_IMAGE_PREFIX)/$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)
PUBLISH ?= false
DOCKER_FORCE_CLEAN ?= true
# proxy options
PROXY ?= http://proxy.foo.com:8000
NO_PROXY ?= localhost,127.0.0.1,.svc.cluster.local
USE_PROXY ?= false
.PHONY: build
build:
(cd image && go build -v -o $(GOBIN)/config-function .)
.PHONY: all
all: generate license build fix vet fmt test lint tidy
.PHONY: fix
fix:
(cd image && go fix ./...)
.PHONY: fmt
fmt:
(cd image && go fmt ./...)
.PHONY: generate
generate:
(which $(GOBIN)/mdtogo || go get sigs.k8s.io/kustomize/cmd/mdtogo)
(cd image && GOBIN=$(GOBIN) go generate ./...)
.PHONY: tidy
tidy:
(cd image && go mod tidy)
.PHONY: fix
lint:
(which $(GOBIN)/golangci-lint || go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.19.1)
(cd image && $(GOBIN)/golangci-lint run ./...)
.PHONY: test
test:
(cd image && go test -cover ./...)
.PHONY: vet
vet:
(cd image && go vet ./...)
.PHONY: image
image:
ifeq ($(USE_PROXY), true)
cd image && \
docker build . --network=host \
--build-arg http_proxy=$(PROXY) \
--build-arg https_proxy=$(PROXY) \
--build-arg HTTP_PROXY=$(PROXY) \
--build-arg HTTPS_PROXY=$(PROXY) \
--build-arg no_proxy=$(NO_PROXY) \
--build-arg NO_PROXY=$(NO_PROXY) \
--tag $(DOCKER_IMAGE) \
--force-rm=$(DOCKER_FORCE_CLEAN)
else
cd image && \
docker build . --network=host \
--tag $(DOCKER_IMAGE) \
--force-rm=$(DOCKER_FORCE_CLEAN)
endif
ifeq ($(PUBLISH), true)
@docker push $(DOCKER_IMAGE)
endif

75
krm-functions/replacement-transformer/README.md Normal file
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@ -0,0 +1,75 @@
# Replacement Transformer
This plugin is written in `go` and uses the `kyaml` and `airshipctl` libraries
for parsing the input and writing the output.
## Function implementation
The function is implemented as an [image](image), and built using `make image`.
Function reads configuration, a collection of input resources, and performs values
replacement based on configuration.
## Function invocation
The function is invoked by authoring a [local Resource](local-resource)
with `metadata.annotations.[config.kubernetes.io/function]` and running:
kustomize config run local-resource/
This exits non-zero if there is an error.
## Running the Example
Run `Replacement Transformer` with:
kustomize fn run local-resource --dry-run
Value of `spec.version` in resource `KubeadmControlPlane` (`v1.18.6`) will be replaced
with value of `kubernetes` field defined in `VariableCatalogue` resource
## Configuration file format
`Replacement Transformer` configuration resource is represented as a standard
k8s resource with Group, Version, Kind and Metadata header. Replacement
configuration is defined under `replacements` field which contains a list of
object with following structure.
source:
objref:
group: airshipit.org
version: v1alpha1
kind: Clusterctl
name: resource-name
namespace: capm3
value: "string value"
fieldref: {.data.host}
target:
objref:
group: airshipit.org
version: v1alpha1
kind: KubeConfig
name: resource-name
namespace: capi-system
fieldrefs:
- {.config.kind}
* `source` defines where a substitution is from. It can from two different
kinds of sources from a field of one resource or from a string.
* `objref` refers to a kubernetes object by Group, Version, Kind, Name and
Namespace. Each field can be omitted or be an empty string.
* `value` static string value to substitute into `target`.
* `fieldref` JSON path to particular object field. This field essentially
represents JSON query with syntax used in `kubectl` executed with
flag `--jsonpath`. JSON path syntax end elements is defined by
https://goessner.net/articles/JsonPath/
* `target` defines a substitution target.
* `objref` specifies a set of resources. Any resource that matches
intersection of all conditions (Group, Version, Kind, Name and Namespace) is
included in this set.
* `fieldrefs` list of JSON path strings which identify target field to
substitute into. Field reference may have include pattern which is used as a
replacement variable. For example in following query `{.metadata.name}%NAME%`
string surrounded by `%` symbols (i.e. `NAME`) is considered as a pattern
inside a field value identified by JSON path `metadata.name`. Therefore if
value of `metadata.name` is `some-NAME-of-the-pod` only `NAME` substring is
replaced with the string defined by substitution source.

8
krm-functions/replacement-transformer/image/go.mod Normal file
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@ -0,0 +1,8 @@
module opendev.org/airship/airshipctl/functions/replacement-transformer/image
go 1.14
require (
opendev.org/airship/airshipctl v0.0.0-20201007215749-76e4d3f48c5a
sigs.k8s.io/kustomize/kyaml v0.7.1
)

47
krm-functions/replacement-transformer/local-resource/example-use.yaml Normal file
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@ -0,0 +1,47 @@
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
---
apiVersion: airshipit.org/v1alpha1
kind: ReplacementTransformer
metadata:
annotations:
config.kubernetes.io/function: |-
container:
image: quay.io/airshipit/replacement-transformer:dev
name: k8scontrol-versions-replacements
replacements:
# Replace the Kubernetes version in the KubeadmControlPlane
- source:
objref:
name: versions-airshipctl
fieldref: kubernetes
target:
objref:
kind: KubeadmControlPlane
name: cluster-controlplane
fieldrefs:
- "{.spec.version}"
---
kind: KubeadmControlPlane
apiVersion: controlplane.cluster.x-k8s.io/v1alpha3
metadata:
name: cluster-controlplane
spec:
replicas: 1
version: v1.18.6
---
apiVersion: airshipit.org/v1alpha1
kind: VariableCatalogue
metadata:
name: versions-airshipctl
kubernetes: v1.19

32
krm-functions/replacement-transformer/main.go Normal file
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@ -0,0 +1,32 @@
// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
// Package main implements an injection function for resource reservations and
// is run with `kustomize config run -- DIR/`.
package main
import (
"fmt"
"os"
"sigs.k8s.io/kustomize/kyaml/fn/framework"
"opendev.org/airship/airshipctl/pkg/document/plugin/replacement"
)
func main() {
cfg := make(map[string]interface{})
resourceList := &framework.ResourceList{FunctionConfig: &cfg}
cmd := framework.Command(resourceList, func() error {
plugin, err := replacement.New(cfg)
if err != nil {
return err
}
resourceList.Items, err = plugin.Filter(resourceList.Items)
return err
})
if err := cmd.Execute(); err != nil {
fmt.Fprint(os.Stderr, err)
os.Exit(1)
}
}

36
manifests/function/baremetal-operator/replacements/versions.yaml
View File

@ -4,79 +4,83 @@ apiVersion: airshipit.org/v1alpha1
kind: ReplacementTransformer
metadata:
name: baremetal-operator-versions-replacements
annotations:
config.kubernetes.io/function: |-
container:
image: quay.io/airshipit/replacement-transformer:dev
replacements:
# Container versions for the ironic Deployment
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.ironic.init_bootstrap
fieldref: "{.images.baremetal_operator.ironic.init_bootstrap}"
target:
objref:
kind: Deployment
name: ironic
fieldrefs: ["spec.template.spec.initContainers[name=init-bootstrap].image"]
fieldrefs: ["{.spec.template.spec.initContainers[?(.name == 'init-bootstrap')].image}"]
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.ironic.dnsmasq
fieldref: "{.images.baremetal_operator.ironic.dnsmasq}"
target:
objref:
kind: Deployment
name: ironic
fieldrefs: ["spec.template.spec.containers[name=dnsmasq].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'dnsmasq')].image}"]
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.ironic.httpd
fieldref: "{.images.baremetal_operator.ironic.httpd}"
target:
objref:
kind: Deployment
name: ironic
fieldrefs: ["spec.template.spec.containers[name=httpd].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'httpd')].image}"]
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.ironic.ironic
fieldref: "{.images.baremetal_operator.ironic.ironic}"
target:
objref:
kind: Deployment
name: ironic
fieldrefs: ["spec.template.spec.containers[name=ironic].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'ironic')].image}"]
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.ironic.ironic_inspector
fieldref: "{.images.baremetal_operator.ironic.ironic_inspector}"
target:
objref:
kind: Deployment
name: ironic
fieldrefs: ["spec.template.spec.containers[name=ironic-inspector].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'ironic-inspector')].image}"]
# Container versions for the metal3-baremetal-operator Deployment
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.metal3_baremetal_operator.baremetal_operator
fieldref: "{.images.baremetal_operator.metal3_baremetal_operator.baremetal_operator}"
target:
objref:
kind: Deployment
name: metal3-baremetal-operator
fieldrefs: ["spec.template.spec.containers[name=baremetal-operator].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'baremetal-operator')].image}"]
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.metal3_baremetal_operator.ironic_proxy
fieldref: "{.images.baremetal_operator.metal3_baremetal_operator.ironic_proxy}"
target:
objref:
kind: Deployment
name: metal3-baremetal-operator
fieldrefs: ["spec.template.spec.containers[name=ironic-proxy].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'ironic-proxy')].image}"]
- source:
objref:
name: versions-airshipctl
fieldref: images.baremetal_operator.metal3_baremetal_operator.ironic_inspector_proxy
fieldref: "{.images.baremetal_operator.metal3_baremetal_operator.ironic_inspector_proxy}"
target:
objref:
kind: Deployment
name: metal3-baremetal-operator
fieldrefs: ["spec.template.spec.containers[name=ironic-inspector-proxy].image"]
fieldrefs: ["{.spec.template.spec.containers[?(.name == 'ironic-inspector-proxy')].image}"]

12
manifests/function/clusterctl/replacements/versions.yaml
View File

@ -3,25 +3,29 @@ apiVersion: airshipit.org/v1alpha1
kind: ReplacementTransformer
metadata:
name: k8scontrol-versions-replacements
annotations:
config.kubernetes.io/function: |-
container:
image: quay.io/airshipit/replacement-transformer:dev
replacements:
# Replace the Kubernetes version in the KubeadmControlPlane
- source:
objref:
name: versions-airshipctl
fieldref: kubernetes
fieldref: "{.kubernetes}"
target:
objref:
kind: KubeadmControlPlane
name: cluster-controlplane
fieldrefs: ["spec.version"]
fieldrefs: ["{.spec.version}"]
# Replace the controlplane disk image in the Metal3MachineTemplate
- source:
objref:
name: versions-airshipctl
fieldref: files.k8scontrol.cluster_controlplane_image
fieldref: "{.files.k8scontrol.cluster_controlplane_image}"
target:
objref:
kind: Metal3MachineTemplate
name: cluster-controlplane
fieldrefs: ["spec.template.spec.image"]
fieldrefs: ["{.spec.template.spec.image}"]

8
manifests/function/hardwareprofile-example/replacements/hosts.yaml
View File

@ -5,15 +5,19 @@ kind: ReplacementTransformer
metadata:
# NOTE: change this when copying this example
name: hardwareprofile-example-replacements
annotations:
config.kubernetes.io/function: |-
container:
image: quay.io/airshipit/replacement-transformer:dev
replacements:
- source:
objref:
# NOTE: change this to match your hardwareProfile's metadata.name
name: hardwareprofile-example
fieldref: hardwareProfile
fieldref: "{.hardwareProfile}"
target:
objref:
kind: Templater
name: m3-host-template
# NOTE: change "example" below when copying this example
fieldrefs: [values.hardwareProfiles.example]
fieldrefs: ["{.values.hardwareProfiles.example}"]

16
manifests/function/hostgenerator-m3/replacements/hosts.yaml
View File

@ -4,31 +4,35 @@ apiVersion: airshipit.org/v1alpha1
kind: ReplacementTransformer
metadata:
name: m3-host-replacements
annotations:
config.kubernetes.io/function: |-
container:
image: quay.io/airshipit/replacement-transformer:dev
replacements:
- source:
objref:
name: host-catalogue
fieldref: hosts.m3
fieldref: "{.hosts.m3}"
target:
objref:
kind: Templater
name: m3-host-template
fieldrefs: [values.hosts]
fieldrefs: ["{.values.hosts}"]
- source:
objref:
name: host-generation-catalogue
fieldref: hosts.m3
fieldref: "{.hosts.m3}"
target:
objref:
kind: Templater
name: m3-host-template
fieldrefs: [values.hostsToGenerate]
fieldrefs: ["{.values.hostsToGenerate}"]
- source:
objref:
name: common-networking-catalogue
fieldref: commonNetworking
fieldref: "{.commonNetworking}"
target:
objref:
kind: Templater
name: m3-host-template
fieldrefs: [values.commonNetworking]
fieldrefs: ["{.values.commonNetworking}"]

12
manifests/function/k8scontrol/replacements/versions.yaml
View File

@ -3,25 +3,29 @@ apiVersion: airshipit.org/v1alpha1
kind: ReplacementTransformer
metadata:
name: k8scontrol-versions-replacements
annotations:
config.kubernetes.io/function: |-
container:
image: quay.io/airshipit/replacement-transformer:dev
replacements:
# Replace the Kubernetes version in the KubeadmControlPlane
- source:
objref:
name: versions-airshipctl
fieldref: kubernetes
fieldref: "{.kubernetes}"
target:
objref:
kind: KubeadmControlPlane
name: cluster-controlplane
fieldrefs: ["spec.version"]
fieldrefs: ["{.spec.version}"]
# Replace the controlplane disk image in the Metal3MachineTemplate
- source:
objref:
name: versions-airshipctl
fieldref: files.k8scontrol.cluster_controlplane_image
fieldref: "{.files.k8scontrol.cluster_controlplane_image}"
target:
objref:
kind: Metal3MachineTemplate
name: cluster-controlplane
fieldrefs: ["spec.template.spec.image"]
fieldrefs: ["{.spec.template.spec.image}"]

1
pkg/api/v1alpha1/replacement_plugin_types.go
View File

@ -28,7 +28,6 @@ type ReplacementTransformer struct {
// Replacements list of source and target field to do a replacement
Replacements []types.Replacement `json:"replacements,omitempty" yaml:"replacements,omitempty"`
Tst []string
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

2
pkg/document/plugin/replacement/transformer.go
View File

@ -26,7 +26,7 @@ import (
var (
pattern = regexp.MustCompile(`(\S+)\[(\S+)=(\S+)\]`)
// substring substitutions are appended to paths as: ...%VARNAME%
substringPatternRegex = regexp.MustCompile(`(\S+)%(\S+)%$`)
substringPatternRegex = regexp.MustCompile(`(.+)%(\S+)%$`)
)
const (

4
playbooks/get-vm-config.yaml
View File

@ -15,7 +15,7 @@
set -e
kustomize build --enable_alpha_plugins \
{{ airship_config_manifest_directory }}/{{ airship_config_site_path }}/{{ path }} |
kustomize config grep "kind=BareMetalHost"
kustomize cfg grep "kind=BareMetalHost"
register: bmh_command
failed_when: "bmh_command.stdout == ''"
environment:
@ -30,7 +30,7 @@
set -e
kustomize build --enable_alpha_plugins \
{{ airship_config_manifest_directory }}/{{ airship_config_site_path }}/{{ path }} |
kustomize config grep "metadata.name={{ item.spec.networkData.name }}"
kustomize cfg grep "metadata.name={{ item.spec.networkData.name }}"
register: netdata_command
failed_when: "netdata_command.stdout == ''"
environment:

2
roles/install-kustomize/defaults/main.yml
View File

@ -10,7 +10,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
kustomize_version: v3.5.5
kustomize_version: v3.8.5
kustomize_download_url: "https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/{{ kustomize_version }}/kustomize_{{ kustomize_version }}_linux_amd64.tar.gz"
proxy:
http:

4
tools/deployment/21_systemwide_executable.sh
View File

@ -19,8 +19,8 @@ export HTTPS_PROXY=${HTTPS_PROXY:-${https_proxy}}
export HTTP_PROXY=${HTTP_PROXY:-${http_proxy}}
export NO_PROXY=${NO_PROXY:-${no_proxy}}
echo "Build airshipctl in docker image"
make docker-image
echo "Build airshipctl docker images"
make images
echo "Copy airshipctl from docker image"
DOCKER_IMAGE_TAG=$(make print-docker-image-tag)