Run onos-local with Bazel-provided remote JDK
That's it, no need to have a JDK installed in your host system.
Unfortunately the Bazel remote JDK targets don't expose some files
required by Karaf at runtime (conf/security). The workaround for
now is to check them in here, but we should consider fixing the Bazel
rules upstream.
Change-Id: Ib003b1589d326655c1cf5f329ebe48b0c946743f
diff --git a/tools/build/jdk/BUILD b/tools/build/jdk/BUILD
new file mode 100644
index 0000000..84856ee
--- /dev/null
+++ b/tools/build/jdk/BUILD
@@ -0,0 +1,49 @@
+# This is where we define the JDK used to build ONOS, as well as the language
+# source and target values passed to javac. The :default_toolchain and
+# :default_jdk are expected to be passed as arguments when invoking bazel build
+# (see onos/.bazelrc)
+
+load("@bazel_tools//tools/jdk:default_java_toolchain.bzl", "default_java_toolchain")
+
+default_java_toolchain(
+ name = "default_toolchain",
+ source_version = "11",
+ target_version = "11",
+ visibility = ["//visibility:public"],
+)
+
+alias(
+ name = "default_jdk",
+ actual = "@bazel_tools//tools/jdk:remote_jdk11",
+ visibility = ["//visibility:public"],
+)
+
+# We use the following rule to package the same JDK used for building and make
+# it available for external scripts as their JAVA_HOME, such as for `bazel run
+# onos-local`.
+
+# FIXME: @bazel_tools//tools/jdk:current_java_runtime should be fixed upstream
+# to include the missing JDK conf/security files, required by Karaf. The
+# workaround for now is to check in those files here and include them in the
+# produced JDK tar.
+
+genrule(
+ name = "default_jdk_tar",
+ srcs = [
+ "@bazel_tools//tools/jdk:current_java_runtime",
+ ":conf-security",
+ ],
+ outs = ["default_jdk.tar.gz"],
+ cmd = "mkdir default_jdk && " +
+ "mv $(JAVABASE)/* default_jdk/ && " +
+ "mv tools/build/jdk/* default_jdk/ && " +
+ "tar -hczf $(location default_jdk.tar.gz) default_jdk",
+ output_to_bindir = True,
+ toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
+ visibility = ["//visibility:public"],
+)
+
+filegroup(
+ name = "conf-security",
+ srcs = glob(["conf/security/**"]),
+)