forked from rook/rook
Sébastien Han
121c2987e3
We don't need to use tini. We don't have anything in the rook operator that would either create zombie processes (no threads) or use exec (to fork). The Go binary has a really good signal handling mechanism. Closes: https://github.com/rook/rook/issues/8794 Signed-off-by: Sébastien Han <seb@redhat.com>
59 lines
2.0 KiB
Go
59 lines
2.0 KiB
Go
/*
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Copyright 2019 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"fmt"
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"github.com/rook/rook/cmd/rook/rook"
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"github.com/rook/rook/pkg/daemon/util"
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"github.com/spf13/cobra"
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)
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// CopyBinsCmd defines a top-level utility command which copies rook binary from the Rook
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// container image to a directory.
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var CopyBinsCmd = &cobra.Command{
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Use: "copy-binaries",
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Short: "Copy 'rook' binary from a container to a given directory.",
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Long: `Copy 'rook' binary from a container to a given directory.
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As an example, 'cmd-reporter run' may often need to be run from a container
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other than the container containing the 'rook' binary. Use this command to copy
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the 'rook' binary from the container containing the 'rook'
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binary to a Kubernetes EmptyDir volume mounted at the given directory in a pod's
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init container. From the pod's main container, mount the volume which now
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contains the 'rook' binary, and call 'rook cmd-reporter run' from
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'rook' in order to run the desired command from a non-Rook container.`,
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Args: cobra.NoArgs,
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RunE: runCopyBins,
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}
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func init() {
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// copy-binaries
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CopyBinsCmd.Flags().StringVar(©ToDir, "copy-to-dir", "",
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"The directory into which 'rook' binary will be copied.")
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if err := CopyBinsCmd.MarkFlagRequired("copy-to-dir"); err != nil {
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panic(err)
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}
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}
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func runCopyBins(cCmd *cobra.Command, cArgs []string) error {
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if err := util.CopyBinaries(copyToDir); err != nil {
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rook.TerminateFatal(fmt.Errorf("could not copy binary to %s. %+v", copyToDir, err))
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}
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return nil
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}
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