feat: reduce number of containers

feat: reduce number of dockerfiles

this commit reduces number of builded containers to just 2.
One container for disk-virt tasks and second for everything else.
The disk-virt containers requires separate container, because they need
different base image (kubevirt libguestfs which is distroless and we
can't install there anything). Other tasks share the same container,
because they don't need anything special.
This change will help to decrease maintenance effort, because we will
not have to take care about 9 containers, but only about two.
This commit also reduce number of dockerfiles to just two (one for disk-virt tasks,
second for everything else). This will help to reduce time needed to
e.g. bump golang version, or bump base images versions. It will also reduce
complexity of build scripts and it will reduce build time.

New containers will have names:
kubevirt/tekton-tasks
kubevirt/tekton-tasks-disk-virt

kubevirt/tekton-tasks container contains :copy-template, create-vm,
execute-in-vm, generate-ssh-keys, modify-data-object, modify-vm-template
and wait-for-vmi-status tasks.
kubevirt/tekton-tasks-disk-virt container contains: disk-virt-customize
and disk-virt-sysprep

Signed-off-by: Karel Šimon <ksimon@redhat.com>

build/Containerfile

@@ -0,0 +1,35 @@
+FROM quay.io/centos/centos:stream9 AS taskBuilder
+
+RUN dnf install -y tar gzip && dnf clean all
+
+ENV GO_VERSION="1.20.2"
+RUN curl -L https://go.dev/dl/go${GO_VERSION}.linux-amd64.tar.gz | tar -C /usr/local -xzf -
+ENV PATH=$PATH:/usr/local/go/bin
+
+COPY . /src
+RUN mkdir /out
+
+RUN task_names=("copy-template" "create-vm" "execute-in-vm" "generate-ssh-keys" "modify-data-object" "modify-vm-template" "wait-for-vmi-status"); \
+    for TASK_NAME in ${task_names[@]}; do \
+        cd /src/modules/$TASK_NAME/; \
+        CGO_ENABLED=0 GOOS=linux go build -mod=vendor -o /out/${TASK_NAME} cmd/${TASK_NAME}/main.go; \
+    done
+
+FROM quay.io/centos/centos:stream9
+ENV USER_UID=1001 \
+    USER_NAME=tekton-tasks \
+    HOME=/home/${USER_NAME}
+
+RUN dnf install -y xorriso openssh-clients && dnf clean all
+
+# install task binaries
+COPY --from=taskBuilder /out/. /usr/local/bin/
+COPY build/bin /usr/local/bin
+
+USER 0
+RUN  /usr/local/bin/user_setup
+
+ENTRYPOINT ["/usr/local/bin/entrypoint"]
+CMD ["--help"]
+
+USER ${USER_UID}

build/Containerfile.DiskVirt

@@ -0,0 +1,34 @@
+FROM quay.io/centos/centos:stream9 AS taskBuilder
+
+RUN dnf install -y tar gzip && dnf clean all
+
+ENV GO_VERSION="1.20.2"
+
+RUN curl -L https://go.dev/dl/go${GO_VERSION}.linux-amd64.tar.gz | tar -C /usr/local -xzf -
+ENV PATH=$PATH:/usr/local/go/bin
+
+COPY . /src
+RUN mkdir /out
+
+RUN task_names=("disk-virt-customize" "disk-virt-sysprep"); \
+    for TASK_NAME in ${task_names[@]}; do \
+        cd /src/modules/$TASK_NAME/; \
+        CGO_ENABLED=0 GOOS=linux go build -mod=vendor -o /out/${TASK_NAME} cmd/${TASK_NAME}/main.go; \
+    done
+
+FROM quay.io/kubevirt/libguestfs-tools:v0.59.0
+ENV USER_UID=1001 \
+    USER_NAME=tekton-tasks-disk-virt \
+    HOME=/home/${USER_NAME}
+
+# install task binaries
+COPY --from=taskBuilder /out/. /usr/local/bin/
+COPY build/bin /usr/local/bin
+
+USER 0
+RUN  /usr/local/bin/user_setup
+
+ENTRYPOINT ["/usr/local/bin/entrypoint"]
+CMD ["--help"]
+
+USER ${USER_UID}

modules/disk-virt-sysprep/build/disk-virt-sysprep/bin/entrypoint → build/bin/entrypoint

@@ -9,4 +9,12 @@ if ! whoami &>/dev/null; then
   fi
 fi
 
-exec ${ENTRY_CMD} $@
+#this variable is needed for tasks which work with ssh keys
+export USER="tekton-tasks"
+
+if [[ -z "${COMMAND}" ]]; then
+  echo "command not defined"
+  exit 1
+fi
+
+exec ${COMMAND} $@

configs/cleanup-vm.yaml

@@ -1,4 +1,4 @@
 task_name: cleanup-vm
 task_category: execute-in-vm
 # execute-in-vm.yaml main_image should be also updated to match this one!
-main_image: quay.io/kubevirt/tekton-task-execute-in-vm
+main_image: quay.io/kubevirt/tekton-tasks

configs/copy-template.yaml

@@ -1,4 +1,4 @@
 task_name: copy-template
 task_category: copy-template
-main_image: quay.io/kubevirt/tekton-task-copy-template
+main_image: quay.io/kubevirt/tekton-tasks
 is_okd: true

configs/create-vm-from-manifest.yaml

@@ -1,4 +1,4 @@
 task_name: create-vm-from-manifest
 task_category: create-vm
 # create-vm-from-template.yaml main_image should be also updated to match this one!
-main_image: quay.io/kubevirt/tekton-task-create-vm
+main_image: quay.io/kubevirt/tekton-tasks

configs/create-vm-from-template.yaml

@@ -1,5 +1,5 @@
 task_name: create-vm-from-template
 task_category: create-vm
 # create-vm-from-manifest.yaml main_image should be also updated to match this one!
-main_image: quay.io/kubevirt/tekton-task-create-vm
+main_image: quay.io/kubevirt/tekton-tasks
 is_okd: true

configs/disk-virt-customize.yaml

@@ -1,3 +1,3 @@
 task_name: disk-virt-customize
 task_category: disk-virt-customize
-main_image: quay.io/kubevirt/tekton-task-disk-virt-customize
+main_image: quay.io/kubevirt/tekton-task-disk-virt

configs/disk-virt-sysprep.yaml

@@ -1,3 +1,3 @@
 task_name: disk-virt-sysprep
 task_category: disk-virt-sysprep
-main_image: quay.io/kubevirt/tekton-task-disk-virt-sysprep
+main_image: quay.io/kubevirt/tekton-task-disk-virt

configs/execute-in-vm.yaml

@@ -1,4 +1,4 @@
 task_name: execute-in-vm
 task_category: execute-in-vm
 # cleanup-vm.yaml main_image should be also updated to match this one!
-main_image: quay.io/kubevirt/tekton-task-execute-in-vm
+main_image: quay.io/kubevirt/tekton-tasks

configs/generate-ssh-keys.yaml

@@ -1,3 +1,3 @@
 task_name: generate-ssh-keys
 task_category: generate-ssh-keys
-main_image: quay.io/kubevirt/tekton-task-generate-ssh-keys
+main_image: quay.io/kubevirt/tekton-tasks

configs/modify-data-object.yaml

@@ -1,3 +1,3 @@
 task_name: modify-data-object
 task_category: modify-data-object
-main_image: quay.io/kubevirt/tekton-task-modify-data-object
+main_image: quay.io/kubevirt/tekton-tasks

configs/modify-object-task.yaml

@@ -1,3 +1,3 @@
 task_name: modify-object
 task_category: modify-object
-main_image: quay.io/kubevirt/tekton-task-modify-object
+main_image: quay.io/kubevirt/tekton-tasks

configs/modify-vm-template.yaml

@@ -1,4 +1,4 @@
 task_name: modify-vm-template
 task_category: modify-vm-template
-main_image: quay.io/kubevirt/tekton-task-modify-vm-template
+main_image: quay.io/kubevirt/tekton-tasks
 is_okd: true

configs/modify-windows-iso-file.yaml

@@ -1,5 +1,5 @@
 task_name: modify-windows-iso-file
 task_category: modify-windows-iso-file
-extract_iso_image: quay.io/kubevirt/tekton-task-disk-virt-customize
-modify_iso_image: quay.io/kubevirt/tekton-task-modify-data-object
-create_iso_image: quay.io/kubevirt/tekton-task-modify-data-object
+extract_iso_image: quay.io/kubevirt/tekton-task-disk-virt
+modify_iso_image: quay.io/kubevirt/tekton-tasks
+create_iso_image: quay.io/kubevirt/tekton-tasks

configs/wait-for-vmi-status.yaml

@@ -1,3 +1,3 @@
 task_name: wait-for-vmi-status
 task_category: wait-for-vmi-status
-main_image: quay.io/kubevirt/tekton-task-wait-for-vmi-status
+main_image: quay.io/kubevirt/tekton-tasks