Make debs, rpms, and docker images multiarch

build/BUILD

@@ -3,6 +3,7 @@ package(default_visibility = ["//visibility:public"])
 load("@io_bazel_rules_docker//container:container.bzl", "container_bundle", "container_image")
 load("@io_k8s_repo_infra//defs:build.bzl", "release_filegroup")
 load(":code_generation_test.bzl", "code_generation_test_suite")
+load(":platforms.bzl", "for_platforms")
 
 code_generation_test_suite(
     name = "code_generation_tests",
@@ -30,23 +31,38 @@ filegroup(
 # in build/common.sh.
 DOCKERIZED_BINARIES = {
     "cloud-controller-manager": {
-        "base": "@debian-base-amd64//image",
+        "base": select(for_platforms(
+            for_node = "@debian-base-{ARCH}//image",
+            only_os = "linux",
+        )),
         "target": "//cmd/cloud-controller-manager:cloud-controller-manager",
     },
     "kube-apiserver": {
-        "base": "@debian-base-amd64//image",
+        "base": select(for_platforms(
+            for_node = "@debian-base-{ARCH}//image",
+            only_os = "linux",
+        )),
         "target": "//cmd/kube-apiserver:kube-apiserver",
     },
     "kube-controller-manager": {
-        "base": "@debian-base-amd64//image",
+        "base": select(for_platforms(
+            for_node = "@debian-base-{ARCH}//image",
+            only_os = "linux",
+        )),
         "target": "//cmd/kube-controller-manager:kube-controller-manager",
     },
     "kube-scheduler": {
-        "base": "@debian-base-amd64//image",
+        "base": select(for_platforms(
+            for_node = "@debian-base-{ARCH}//image",
+            only_os = "linux",
+        )),
         "target": "//cmd/kube-scheduler:kube-scheduler",
     },
     "kube-proxy": {
-        "base": "@debian-iptables-amd64//image",
+        "base": select(for_platforms(
+            for_node = "@debian-iptables-{ARCH}//image",
+            only_os = "linux",
+        )),
         "target": "//cmd/kube-proxy:kube-proxy",
     },
 }
@@ -55,9 +71,10 @@ DOCKERIZED_BINARIES = {
     name = binary + "-internal",
     base = meta["base"],
     cmd = ["/usr/bin/" + binary],
-    debs = [
-        "//build/debs:%s.deb" % binary,
-    ],
+    debs = select(for_platforms(
+        for_node = ["//build/debs:%s-{ARCH}.deb" % binary],
+        only_os = "linux",
+    )),
     stamp = True,
     symlinks = {
         # Some cluster startup scripts expect to find the binaries in /usr/local/bin,

build/debs/BUILD

 package(default_visibility = ["//visibility:public"])
 
-load("@io_k8s_repo_infra//defs:deb.bzl", "k8s_deb", "deb_data")
+load("@io_k8s_repo_infra//defs:deb.bzl", "deb_data", "k8s_deb")
 load("@io_k8s_repo_infra//defs:build.bzl", "release_filegroup")
 load("@io_k8s_repo_infra//defs:pkg.bzl", "pkg_tar")
+load(
+    "//build:platforms.bzl",
+    "CLIENT_PLATFORMS",
+    "NODE_PLATFORMS",
+    "SERVER_PLATFORMS",
+    "for_platforms",
+)
 load("//build:workspace.bzl", "CNI_VERSION", "CRI_TOOLS_VERSION")
 
 # We do not include kube-scheduler, kube-controller-manager,
@@ -12,44 +19,72 @@ load("//build:workspace.bzl", "CNI_VERSION", "CRI_TOOLS_VERSION")
 # images.
 release_filegroup(
     name = "debs",
-    srcs = [
-        ":cri-tools.deb",
-        ":kubeadm.deb",
-        ":kubectl.deb",
-        ":kubelet.deb",
-        ":kubernetes-cni.deb",
-    ],
-)
+    conditioned_srcs = for_platforms(
+        default = [],
+        for_client = [":kubectl-{ARCH}.deb"],
+        for_node = [
+            ":cri-tools-{ARCH}.deb",
+            ":kubeadm-{ARCH}.deb",
+            ":kubelet-{ARCH}.deb",
+            ":kubernetes-cni-{ARCH}.deb",
+        ],
+        only_os = "linux",
+    ),
+)
+
+# Create aliases from the non-arch names to the arch-specific names for backwards compatibility
+alias(
+    name = "kubectl",
+    actual = select(for_platforms(
+        for_client = ":kubectl-{ARCH}",
+        only_os = "linux",
+    )),
+)
+
+[alias(
+    name = pkg,
+    actual = select(for_platforms(
+        for_node = ":%s-{ARCH}" % pkg,
+        only_os = "linux",
+    )),
+) for pkg in [
+    "cri-tools",
+    "kubeadm",
+    "kubelet",
+    "kubernetes-cni",
+]]
 
 [deb_data(
-    name = binary,
+    name = "kubectl",
     data = [
         {
-            "files": ["//cmd/" + binary],
+            "files": ["//cmd/kubectl"],
             "mode": "0755",
             "dir": "/usr/bin",
         },
     ],
-) for binary in [
-    "cloud-controller-manager",
-    "kubectl",
-    "kube-apiserver",
-    "kube-controller-manager",
-    "kube-proxy",
-]]
+    goarch = arch,
+) for arch in CLIENT_PLATFORMS["linux"]]
 
-deb_data(
-    name = "kube-scheduler",
+[[deb_data(
+    name = binary,
     data = [
         {
-            "files": ["//cmd/kube-scheduler"],
+            "files": ["//cmd/" + binary],
             "mode": "0755",
             "dir": "/usr/bin",
         },
     ],
-)
+    goarch = arch,
+) for binary in [
+    "cloud-controller-manager",
+    "kube-apiserver",
+    "kube-controller-manager",
+    "kube-proxy",
+    "kube-scheduler",
+]] for arch in SERVER_PLATFORMS["linux"]]
 
-deb_data(
+[deb_data(
     name = "kubelet",
     data = [
         {
@@ -63,9 +98,10 @@ deb_data(
             "dir": "/lib/systemd/system",
         },
     ],
-)
+    goarch = arch,
+) for arch in NODE_PLATFORMS["linux"]]
 
-deb_data(
+[deb_data(
     name = "kubeadm",
     data = [
         {
@@ -89,63 +125,70 @@ deb_data(
             "dir": "/etc/sysctl.d",
         },
     ],
-)
+    goarch = arch,
+) for arch in NODE_PLATFORMS["linux"]]
 
-pkg_tar(
-    name = "kubernetes-cni-data",
+[pkg_tar(
+    name = "kubernetes-cni-data-%s" % goarch,
     package_dir = "/opt/cni/bin",
-    deps = ["@kubernetes_cni//file"],
-)
+    deps = ["@kubernetes_cni_%s//file" % goarch],
+) for goarch in NODE_PLATFORMS["linux"]]
 
-pkg_tar(
-    name = "cri-tools-data",
+[pkg_tar(
+    name = "cri-tools-data-%s" % goarch,
     package_dir = "/usr/bin",
-    deps = ["@cri_tools//file"],
-)
+    deps = ["@cri_tools_%s//file" % goarch],
+) for goarch in NODE_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "cloud-controller-manager",
     description = "Kubernetes Cloud Controller Manager",
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in SERVER_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kubectl",
     description = """Kubernetes Command Line Tool
 The Kubernetes command line tool for interacting with the Kubernetes API.
 """,
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in CLIENT_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kube-apiserver",
     description = "Kubernetes API Server",
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in SERVER_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kube-controller-manager",
     description = "Kubernetes Controller Manager",
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in SERVER_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kube-scheduler",
     description = "Kubernetes Scheduler",
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in SERVER_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kube-proxy",
     depends = [
         "iptables (>= 1.4.21)",
         "iproute2",
     ],
     description = "Kubernetes Service Proxy",
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kubelet",
     depends = [
         "conntrack",
@@ -161,10 +204,11 @@ k8s_deb(
     description = """Kubernetes Node Agent
 The node agent of Kubernetes, the container cluster manager
 """,
+    goarch = arch,
     version_file = "//build:os_package_version",
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kubeadm",
     depends = [
         "kubelet (>= 1.8.0)",
@@ -175,23 +219,26 @@ k8s_deb(
     description = """Kubernetes Cluster Bootstrapping Tool
 The Kubernetes command line tool for bootstrapping a Kubernetes cluster.
 """,
+    goarch = arch,
     postinst = "postinst",
     version_file = "//build:os_package_version",
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "kubernetes-cni",
     description = """Kubernetes Packaging of CNI
 The Container Networking Interface tools for provisioning container networks.
 """,
+    goarch = arch,
     version = CNI_VERSION,
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-k8s_deb(
+[k8s_deb(
     name = "cri-tools",
     description = """Container Runtime Interface tools (crictl)""",
+    goarch = arch,
     version = CRI_TOOLS_VERSION,
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
 filegroup(
     name = "package-srcs",

build/platforms.bzl

@@ -73,3 +73,39 @@ TEST_PLATFORMS = {
         "amd64",
     ],
 }
+
+def go_platform_constraint(os, arch):
+    return "@io_bazel_rules_go//go/platform:%s_%s" % (os, arch)
+
+def _update_dict_for_platform_category(d, value, platforms, only_os = None):
+    if not value:
+        return
+    for os, arches in platforms.items():
+        if only_os and os != only_os:
+            continue
+        for arch in arches:
+            constraint = go_platform_constraint(os, arch)
+            if type(value) == "list":
+                d.setdefault(constraint, []).extend(
+                    [v.format(OS = os, ARCH = arch) for v in value],
+                )
+            else:
+                if constraint in d:
+                    fail("duplicate entry for constraint %s", constraint)
+                d[constraint] = value.format(OS = os, ARCH = arch)
+
+def for_platforms(
+        for_client = None,
+        for_node = None,
+        for_server = None,
+        for_test = None,
+        default = None,
+        only_os = None):
+    d = {}
+    if default != None:
+        d["//conditions:default"] = default
+    _update_dict_for_platform_category(d, for_client, CLIENT_PLATFORMS, only_os)
+    _update_dict_for_platform_category(d, for_node, NODE_PLATFORMS, only_os)
+    _update_dict_for_platform_category(d, for_server, SERVER_PLATFORMS, only_os)
+    _update_dict_for_platform_category(d, for_test, TEST_PLATFORMS, only_os)
+    return d

build/rpms/BUILD

 package(default_visibility = ["//visibility:public"])
 
-load("@bazel_tools//tools/build_defs/pkg:rpm.bzl", "pkg_rpm")
+load("//build:platforms.bzl", "CLIENT_PLATFORMS", "NODE_PLATFORMS", "for_platforms")
 load("//build:workspace.bzl", "CNI_VERSION", "CRI_TOOLS_VERSION")
+load("@io_k8s_repo_infra//defs:build.bzl", "release_filegroup")
+load("@io_k8s_repo_infra//defs:rpm.bzl", "pkg_rpm_for_goarch")
 
-filegroup(
+release_filegroup(
     name = "rpms",
-    srcs = [
-        ":cri-tools",
-        ":kubeadm",
-        ":kubectl",
-        ":kubelet",
-        ":kubernetes-cni",
-    ],
+    conditioned_srcs = for_platforms(
+        default = [],
+        for_client = [":kubectl-{ARCH}"],
+        for_node = [
+            ":cri-tools-{ARCH}",
+            ":kubeadm-{ARCH}",
+            ":kubelet-{ARCH}",
+            ":kubernetes-cni-{ARCH}",
+        ],
+        only_os = "linux",
+    ),
     tags = ["manual"],
     visibility = ["//visibility:public"],
 )
 
-pkg_rpm(
+# Create aliases from the non-arch names to the arch-specific names for backwards compatibility
+alias(
+    name = "kubectl",
+    actual = select(for_platforms(
+        for_client = ":kubectl-{ARCH}",
+        only_os = "linux",
+    )),
+)
+
+[alias(
+    name = pkg,
+    actual = select(for_platforms(
+        for_client = ":%s-{ARCH}" % pkg,
+        only_os = "linux",
+    )),
+) for pkg in [
+    "cri-tools",
+    "kubeadm",
+    "kubelet",
+    "kubernetes-cni",
+]]
+
+[pkg_rpm_for_goarch(
     name = "kubectl",
-    architecture = "x86_64",
     changelog = "//:CHANGELOG.md",
     data = [
         "//cmd/kubectl",
     ],
+    goarch = arch,
     spec_file = "kubectl.spec",
     tags = ["manual"],
     version_file = "//build:os_package_version",
-)
+) for arch in CLIENT_PLATFORMS["linux"]]
 
-pkg_rpm(
+[pkg_rpm_for_goarch(
     name = "kubelet",
-    architecture = "x86_64",
     changelog = "//:CHANGELOG.md",
     data = [
         "kubelet.service",
         "//cmd/kubelet",
     ],
+    goarch = arch,
     spec_file = "kubelet.spec",
     tags = ["manual"],
     version_file = "//build:os_package_version",
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-pkg_rpm(
+[pkg_rpm_for_goarch(
     name = "kubeadm",
-    architecture = "x86_64",
     changelog = "//:CHANGELOG.md",
     data = [
         "10-kubeadm.conf",
@@ -52,33 +79,34 @@ pkg_rpm(
         "kubelet.env",
         "//cmd/kubeadm",
     ],
+    goarch = arch,
     spec_file = "kubeadm.spec",
     tags = ["manual"],
     version_file = "//build:os_package_version",
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-pkg_rpm(
+[pkg_rpm_for_goarch(
     name = "kubernetes-cni",
-    architecture = "x86_64",
     changelog = "//:CHANGELOG.md",
     data = [
-        "@kubernetes_cni//file",
+        "@kubernetes_cni_{GOARCH}//file",
     ],
+    goarch = arch,
     spec_file = "kubernetes-cni.spec",
     tags = ["manual"],
     version = CNI_VERSION,
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
-pkg_rpm(
+[pkg_rpm_for_goarch(
     name = "cri-tools",
-    architecture = "x86_64",
     data = [
-        "@cri_tools//file",
+        "@cri_tools_{GOARCH}//file",
     ],
+    goarch = arch,
     spec_file = "cri-tools.spec",
     tags = ["manual"],
     version = CRI_TOOLS_VERSION,
-)
+) for arch in NODE_PLATFORMS["linux"]]
 
 filegroup(
     name = "package-srcs",