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Build examples

Simple Docker build

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# oc create is simple-docker-build
oc apply -f - <<EOF
apiVersion: image.openshift.io/v1
kind: ImageStream
metadata:
  name: simple-docker-build
spec:
  lookupPolicy:
    local: false
EOF

oc apply -f - <<EOF
apiVersion: build.openshift.io/v1
kind: BuildConfig
metadata:
  name: simple-docker-build
  labels:
    name: simple-docker-build
spec:
  triggers:
    - type: ConfigChange
  source:
    contextDir: "simple-docker-build/"
    type: Git
    git:
      uri: 'https://github.com/openshift-examples/container-build.git'
  strategy:
    type: Docker
  output:
    to:
      kind: ImageStreamTag
      name: 'simple-docker-build:latest'
EOF

Simple Container build

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oc create is simple-container-build

oc apply -f - <<EOF
apiVersion: build.openshift.io/v1
kind: BuildConfig
metadata:
  name: simple-container-build
  labels:
    name: simple-container-build
spec:
  triggers:
    - type: ConfigChange
  source:
    contextDir: "simple-container-build/"
    type: Git
    git:
      uri: 'https://github.com/openshift-examples/container-build.git'
  strategy:
    type: Docker
    dockerStrategy:
      dockerfilePath: "Containerfile"
  output:
    to:
      kind: ImageStreamTag
      name: 'simple-container-build:latest'
EOF

Container build w/ buildArgs

Create secret

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oc create secret generic build-args \
  --from-literal=PASSWORD=IeNae1eigheBiz8ne

oc create configmap build-args \
  --from-literal=USERNAME=foobar24
Create BuildConfig

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oc create is build-args

oc apply -f - <<EOF
apiVersion: build.openshift.io/v1
kind: BuildConfig
metadata:
  name: build-args
  labels:
    name: build-args
spec:
  triggers:
    - type: ConfigChange
  source:
    contextDir: "buildArgs/"
    type: Git
    git:
      uri: 'https://github.com/openshift-examples/container-build.git'
  strategy:
    type: Docker
    dockerStrategy:
      dockerfilePath: "Containerfile"
      buildArgs:
        - name: VERSION
          value: staging
        - name: USERNAME
          valueFrom:
            configMapKeyRef:
              key: USERNAME
              name: build-args
        - name: PASSWORD
          valueFrom:
            secretKeyRef:
              key: PASSWORD
              name: build-args
  output:
    to:
      kind: ImageStreamTag
      name: 'build-args:latest'
EOF

Simple context dir

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oc create is simple-context-dir

oc apply -f - <<EOF
apiVersion: build.openshift.io/v1
kind: BuildConfig
metadata:
  name: simple-context-dir
  labels:
    name: simple-context-dir
spec:
  triggers:
    - type: ConfigChange
  source:
    contextDir: "simple-context-dir/"
    type: Git
    git:
      uri: 'https://github.com/openshift-examples/container-build.git'
  strategy:
    type: Docker
    dockerStrategy:
      dockerfilePath: "Containerfile"
  output:
    to:
      kind: ImageStreamTag
      name: 'simple-context-dir:latest'
EOF

Start & Follow build: oc start-build bc/build-args --follow

Complex context dir

```yaml hl_li>nes="14 20 21" oc create is complex-context-dir

oc apply -f - <<EOF apiVersion: build.openshift.io/v1 kind: BuildConfig metadata: name: complex-context-dir labels: name: complex-context-dir spec: triggers: - type: ConfigChange source: contextDir: "complex-context-dir/" type: Git git: uri: 'https://github.com/openshift-examples/container-build.git' strategy: type: Docker dockerStrategy: dockerfilePath: "containerfiles/Containerfile" output: to: kind: ImageStreamTag name: 'complex-context-dir:latest' EOF

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## Multi-stage - builder & runner

** Nothing special at BuildConfig, checkout the Containerfile: **

```Dockerfile hl_lines="1 12"
FROM centos:8 AS builder

RUN yum groupinstall -y 'Development Tools'

RUN curl -L -O https://bird.network.cz/download/bird-1.6.8.tar.gz && \
    tar xzf bird-1.6.8.tar.gz && \
    cd bird-1.6.8 && \
    ./configure --disable-client --prefix=/opt/bird-1.6.8 && \
    make install


FROM registry.access.redhat.com/ubi8/ubi-minimal AS runner
COPY --from=builder /opt/bird-1.6.8 /opt/bird-1.6.8
ENTRYPOINT ["/opt/bird-1.6.8/sbin/bird", "-f"]

Java / JAR Binary Build

  • Drag & Drop in OpenShift 4.8:

Create a JAR

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git clone https://github.com/spring-projects/spring-petclinic.git
cd spring-petclinic
podman run -ti --rm --user 0 -v $(pwd):/work:Z registry.redhat.io/ubi8/openjdk-11 bash
cd /work
mvn package
exit

Build with ODO

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odo create java test1 --s2i --binary target/*.jar
odo push

Note

Checkout: odo catalog list components

Build with classic BuildConfig

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oc new-build java --name=java-binary-build --binary=true
oc start-build bc/java-binary-build \
    --from-file=./target/*.jar \
    --follow

Go source-2-image

BuildConfig

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oc create is multi-stage

oc apply -f - <<EOF
apiVersion: build.openshift.io/v1
kind: BuildConfig
metadata:
  name: multi-stage
  labels:
    name: multi-stage
spec:
  triggers:
    - type: ConfigChange
  source:
    contextDir: "multi-stage/"
    type: Git
    git:
      uri: 'https://github.com/openshift-examples/container-build.git'
  strategy:
    type: Docker
    dockerStrategy:
      dockerfilePath: "Containerfile"
  output:
    to:
      kind: ImageStreamTag
      name: 'multi-stage:latest'
EOF

Build and push to quay

Create push-secret

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oc create -f - <<EOF
apiVersion: v1
kind: Secret
metadata:
  name: openshift-examples-openshift-push-demo-pull-secret
data:
  .dockerconfigjson: xxxxx
type: kubernetes.io/dockerconfigjson
EOF

Create build config

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oc new-build --name=simple-http-server \
  --push-secret='openshift-examples-openshift-push-demo-pull-secret' \
  --to-docker=true \
  --to="quay.io/openshift-examples/simple-http-server:dev" \
  https://github.com/openshift-examples/simple-http-server.git

Custom build with Buildah

Add git config

OpenShift 3.11 documenation

Create /tmp/gitconfig

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[http]
    sslVerify = false
# Just for information:
[core]
    sshCommand = "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"

Run commands: ( Create secret & add --source-secret=build to new-build )

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oc create secret generic build --from-file=.gitconfig=/tmp/gitconfig \
    --from-file=ssh-privatekey=/tmp/github_rsa \
    --type=kubernetes.io/ssh-auth

oc new-build registry.access.redhat.com/redhat-openjdk-18/openjdk18-openshift~git@github.com:rbo/chaos-professor.git --source-secret=build --env BUILD_LOGLEVEL=5

# If you like, create app
oc new-app chaos-professor

Last update: May 18, 2021