test: add busybox image, use it to replace centos image.

Makefile

@@ -20,9 +20,15 @@ build_stacker = go build -tags "$(BUILD_TAGS) $1" -ldflags "-X main.version=$(VE
 STACKER_DOCKER_BASE?=docker://ghcr.io/project-stacker/
 # They default to their image name in STACKER_DOCKER_BASE
 STACKER_BUILD_BASE_IMAGE?=$(STACKER_DOCKER_BASE)alpine:edge
+STACKER_BUILD_BUSYBOX_IMAGE?=$(STACKER_DOCKER_BASE)busybox:latest
 STACKER_BUILD_CENTOS_IMAGE?=$(STACKER_DOCKER_BASE)centos:latest
 STACKER_BUILD_UBUNTU_IMAGE?=$(STACKER_DOCKER_BASE)ubuntu:latest
-STACKER_BUILD_IMAGES = $(STACKER_BUILD_BASE_IMAGE) $(STACKER_BUILD_CENTOS_IMAGE) $(STACKER_BUILD_UBUNTU_IMAGE)
+STACKER_BUILD_IMAGES = \
+	$(STACKER_BUILD_BASE_IMAGE) \
+	$(STACKER_BUILD_BUSYBOX_IMAGE) \
+	$(STACKER_BUILD_CENTOS_IMAGE) \
+	$(STACKER_BUILD_UBUNTU_IMAGE)
+
 LXC_CLONE_URL?=https://github.com/lxc/lxc
 LXC_BRANCH?=stable-5.0
 
@@ -128,6 +134,7 @@ test: stacker $(REGCLIENT) $(SKOPEO) $(ZOT)
 		LXC_BRANCH=$(LXC_BRANCH) \
 		LXC_CLONE_URL=$(LXC_CLONE_URL) \
 		STACKER_BUILD_BASE_IMAGE=$(STACKER_BUILD_BASE_IMAGE) \
+		STACKER_BUILD_BUSYBOX_IMAGE=$(STACKER_BUILD_BUSYBOX_IMAGE) \
 		STACKER_BUILD_CENTOS_IMAGE=$(STACKER_BUILD_CENTOS_IMAGE) \
 		STACKER_BUILD_UBUNTU_IMAGE=$(STACKER_BUILD_UBUNTU_IMAGE) \
 		./test/main.py \

test/annotations-namespace.bats

@@ -13,7 +13,7 @@ function teardown() {
 thing:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: ls
 EOF
     stacker build --annotations-namespace=namespace.example
@@ -28,7 +28,7 @@ EOF
 thing:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: ls
 EOF
     stacker build

test/annotations.bats

@@ -13,7 +13,7 @@ function teardown() {
 thing:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: ls
     annotations:
       a.b.c.key: val

test/args.bats

@@ -13,7 +13,7 @@ function teardown() {
 parent:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
 child:
     from:
         type: built

test/asterisk.bats

@@ -13,7 +13,7 @@ function teardown() {
 a:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: |
         mkdir /mybin
         cp /bin/* /mybin

test/atomfs.bats

@@ -16,7 +16,7 @@ function basic_test() {
 test:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: |
         touch /hello
 EOF
@@ -48,7 +48,7 @@ EOF
 base:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: touch /base
 a:
     from:
@@ -105,7 +105,7 @@ EOF
 
     # c should still be ok
     [ -f c/c ]
-    [ -f c/sbin/init ]
+    [ -f c/bin/sh ]
     stacker internal-go atomfs umount c
 
     # c's last layer shouldn't exist any more, since it is unique
@@ -121,7 +121,7 @@ EOF
 test:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: |
         touch /hello
 EOF

test/basic.bats

@@ -10,10 +10,10 @@ function teardown() {
 
 @test "multiple stacker builds in a row" {
     cat > stacker.yaml <<EOF
-centos:
+busybox:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     import: import
 EOF
     echo 1 > import
@@ -28,10 +28,10 @@ EOF
 
 @test "basic workings" {
     cat > stacker.yaml <<EOF
-centos:
+busybox:
     from:
         type: tar
-        url: .stacker/layer-bases/centos.tar
+        url: .stacker/layer-bases/busybox.tar
     import:
         - ./stacker.yaml
         - https://www.cisco.com/favicon.ico
@@ -53,7 +53,7 @@ centos:
 layer1:
     from:
         type: built
-        tag: centos
+        tag: busybox
     run:
         - rm /favicon.ico
 EOF
@@ -62,29 +62,29 @@ EOF
     chmod +x executable
     mkdir -p .stacker/layer-bases
     chmod 777 .stacker/layer-bases
-    image_copy oci:$CENTOS_OCI oci:.stacker/layer-bases/oci:centos
-    umoci unpack --image .stacker/layer-bases/oci:centos dest
-    tar caf .stacker/layer-bases/centos.tar -C dest/rootfs .
+    image_copy oci:$BUSYBOX_OCI oci:.stacker/layer-bases/oci:busybox
+    umoci unpack --image .stacker/layer-bases/oci:busybox dest
+    tar caf .stacker/layer-bases/busybox.tar -C dest/rootfs .
     rm -rf dest
 
     stacker build --substitute "FAVICON=favicon.ico"
     [ "$status" -eq 0 ]
 
     # did we really download the image to the right place?
-    [ -f .stacker/layer-bases/centos.tar ]
+    [ -f .stacker/layer-bases/busybox.tar ]
 
     # did run actually copy the favicon to the right place?
-    stacker grab centos:/favicon.ico
-    [ "$(sha .stacker/imports/centos/favicon.ico)" == "$(sha favicon.ico)" ]
+    stacker grab busybox:/favicon.ico
+    [ "$(sha .stacker/imports/busybox/favicon.ico)" == "$(sha favicon.ico)" ]
 
     [ ! -f roots/layer1/rootfs/favicon.ico ] || [ ! -f roots/layer1/overlay/favicon.ico ]
 
     rm executable
-    stacker grab centos:/usr/bin/executable
+    stacker grab busybox:/usr/bin/executable
     [ "$(stat --format="%a" executable)" = "755" ]
 
     # did we do a copy correctly?
-    [ "$(sha .stacker/imports/centos/stacker.yaml)" == "$(sha ./stacker.yaml)" ]
+    [ "$(sha .stacker/imports/busybox/stacker.yaml)" == "$(sha ./stacker.yaml)" ]
 
     # check OCI image generation
     manifest=$(cat oci/index.json | jq -r .manifests[0].digest | cut -f2 -d:)
@@ -140,15 +140,15 @@ EOF
 
 @test "stacker.yaml without imports can run" {
     cat > stacker.yaml <<EOF
-centos:
+busybox:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: |
         touch /foo
 EOF
     stacker build
-    umoci unpack --image oci:centos dest
+    umoci unpack --image oci:busybox dest
     [ -f dest/rootfs/foo ]
 }
 
@@ -162,25 +162,25 @@ EOF
 @test "use colons in roots-dir path name should fail" {
     local tmpd=$(pwd)
     cat > stacker.yaml <<EOF
-centos:
+busybox:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: |
         touch /foo
 EOF
     bad_stacker --roots-dir $tmpd/with:colon build
     [ "$status" -eq 1 ]
     echo $output | grep "forbidden"
-} 
+}
 
 @test "use colons in layer name should fail" {
     local tmpd=$(pwd)
     cat > stacker.yaml <<EOF
-centos:with:colon:
+busybox:with:colon:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     run: |
         touch /foo
 EOF
@@ -194,10 +194,10 @@ EOF
     FAVICON: favicon.ico
 EOF
     cat > stacker.yaml <<EOF
-centos:
+busybox:
     from:
         type: tar
-        url: .stacker/layer-bases/centos.tar
+        url: .stacker/layer-bases/busybox.tar
     import:
         - ./stacker.yaml
         - https://www.cisco.com/favicon.ico
@@ -219,7 +219,7 @@ centos:
 layer1:
     from:
         type: built
-        tag: centos
+        tag: busybox
     run:
         - rm /favicon.ico
 EOF
@@ -228,29 +228,29 @@ EOF
     chmod +x executable
     mkdir -p .stacker/layer-bases
     chmod 777 .stacker/layer-bases
-    image_copy oci:$CENTOS_OCI oci:.stacker/layer-bases/oci:centos
-    umoci unpack --image .stacker/layer-bases/oci:centos dest
-    tar caf .stacker/layer-bases/centos.tar -C dest/rootfs .
+    image_copy oci:$BUSYBOX_OCI oci:.stacker/layer-bases/oci:busybox
+    umoci unpack --image .stacker/layer-bases/oci:busybox dest
+    tar caf .stacker/layer-bases/busybox.tar -C dest/rootfs .
     rm -rf dest
 
     stacker build --substitute-file subs.yaml
     [ "$status" -eq 0 ]
 
     # did we really download the image to the right place?
-    [ -f .stacker/layer-bases/centos.tar ]
+    [ -f .stacker/layer-bases/busybox.tar ]
 
     # did run actually copy the favicon to the right place?
-    stacker grab centos:/favicon.ico
-    [ "$(sha .stacker/imports/centos/favicon.ico)" == "$(sha favicon.ico)" ]
+    stacker grab busybox:/favicon.ico
+    [ "$(sha .stacker/imports/busybox/favicon.ico)" == "$(sha favicon.ico)" ]
 
     [ ! -f roots/layer1/rootfs/favicon.ico ] || [ ! -f roots/layer1/overlay/favicon.ico ]
 
     rm executable
-    stacker grab centos:/usr/bin/executable
+    stacker grab busybox:/usr/bin/executable
     [ "$(stat --format="%a" executable)" = "755" ]
 
     # did we do a copy correctly?
-    [ "$(sha .stacker/imports/centos/stacker.yaml)" == "$(sha ./stacker.yaml)" ]
+    [ "$(sha .stacker/imports/busybox/stacker.yaml)" == "$(sha ./stacker.yaml)" ]
 
     # check OCI image generation
     manifest=$(cat oci/index.json | jq -r .manifests[0].digest | cut -f2 -d:)

test/binds.bats

@@ -13,7 +13,7 @@ function teardown() {
 bind-test:
     from:
         type: oci
-        url: ${{CENTOS_OCI}}
+        url: ${{BUSYBOX_OCI}}
     binds:
         - ${{bind_path}} -> /root/tree1/foo
     run: |
@@ -29,7 +29,7 @@ EOF
 
     bind_path=$(realpath tree1/foo)
 
-    out=$(stacker build --substitute bind_path=${bind_path} --substitute CENTOS_OCI=$CENTOS_OCI)
+    out=$(stacker build --substitute bind_path=${bind_path} --substitute BUSYBOX_OCI=$BUSYBOX_OCI)
 
     [[ "${out}" =~ ^(.*filesystem bind-test built successfully)$ ]]
 
@@ -41,7 +41,7 @@ EOF
 bind-test:
     from:
         type: oci
-        url: ${{CENTOS_OCI}}
+        url: ${{BUSYBOX_OCI}}
     binds:
         - source: ${{bind_path1}}
           dest: /root/tree1/foo
@@ -65,7 +65,7 @@ EOF
     out=$(stacker build \
         "--substitute=bind_path1=${bind_path1}" \
         "--substitute=bind_path2=${bind_path2}" \
-        "--substitute=CENTOS_OCI=$CENTOS_OCI" ) || {
+        "--substitute=BUSYBOX_OCI=$BUSYBOX_OCI" ) || {
              printf "%s\n" "$out" 1>&2
              exit 1
         }

test/broken-link.bats

@@ -14,7 +14,7 @@ function teardown() {
 broken_link:
     from:
         type: oci
-        url: $CENTOS_OCI
+        url: $BUSYBOX_OCI
     import:
         - dir
     run: cp -a /stacker/imports/dir/testln /testln