33 lines
1.2 KiB
Bash
33 lines
1.2 KiB
Bash
#!/bin/bash
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# Copyright 2020 The gVisor Authors.
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#
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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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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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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set -euo pipefail
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# Enable ipv6 on loopback if it's not already enabled. Runsc doesn't enable ipv6
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# loopback unless an ipv6 address was assigned to the container, which docker
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# does not do by default.
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if ! [[ $(ip -6 addr show dev lo) ]]; then
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ip addr add ::1 dev lo
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fi
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# The docker API doesn't provide for starting a container, running a command,
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# and getting the exit status of the command in one go. The most straightforward
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# way to do this is to verify the output of the command, so we output nothing on
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# success and an error message on failure.
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if ! out=$(/bin/ping6 -c 10 ::1); then
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echo "$out"
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fi
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