peridot/rules_byc/internal/k8s/k8s.bzl
2022-07-07 22:13:21 +02:00

68 lines
2.1 KiB
Python

load("@bazel_skylib//lib:shell.bzl", "shell")
def _k8s_apply_impl(ctx):
runfiles = ctx.runfiles().merge(ctx.attr._bash_runfiles[DefaultInfo].default_runfiles)
runfiles = runfiles.merge(ctx.runfiles(
files = ctx.files.srcs,
))
files = [y for y in [x[DefaultInfo].files.to_list() for x in ctx.attr.srcs]]
all_files = [x for y in files for x in y]
sts = ";".join([y.short_path for y in all_files])
wait_sts = ";".join([y.short_path for y in ctx.files.wait])
replace_sts = ";".join([y.short_path for y in ctx.files.replace])
out_file = ctx.actions.declare_file(ctx.label.name + ".bash")
ctx.actions.expand_template(
template = ctx.file._k8s_bash,
output = out_file,
substitutions = {
"TMPL_files": sts,
"TMPL_wait": wait_sts,
"TMPL_replace": replace_sts,
},
is_executable = True,
)
return [DefaultInfo(
files = depset([out_file]),
runfiles = runfiles,
executable = out_file,
)]
k8s_apply = rule(
implementation = _k8s_apply_impl,
attrs = {
# Kubernetes json or yaml files
# Can be a target that generates them
# such as jsonnet_to_json
"srcs": attr.label_list(
allow_files = True,
mandatory = True,
),
# Files to wait for
# Ex. jobs such as migrations
"wait": attr.label_list(
allow_files = True,
),
# Resources to completely replace
# Ex. to clean up hanging jobs
"replace": attr.label_list(
allow_files = True,
),
# Namespace to be used in delete
"namespace": attr.string(),
# Used if resource should be deleted
"delete": attr.bool(
default = False,
),
"_bash_runfiles": attr.label(
default = Label("@bazel_tools//tools/bash/runfiles"),
),
"_k8s_bash": attr.label(
default = Label("//rules_byc/internal/k8s:k8s.bash"),
allow_single_file = True,
),
},
executable = True,
)