28 lines
629 B
Plaintext
28 lines
629 B
Plaintext
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#!/usr/bin/perl
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# docker-enter: Get inside a docker container, using nsenter.
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#
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# Usage: docker-enter <container-id>
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#
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# See also:
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# https://jpetazzo.github.io/2014/03/23/lxc-attach-nsinit-nsenter-docker-0-9/
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#
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# --Kirsle
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# http://sh.kirsle.net/
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use strict;
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use warnings;
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if (scalar(@ARGV) != 1) {
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die "Usage: $0 <container-id>\n";
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}
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my $container_id = shift(@ARGV);
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# Get the process ID.
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chomp(my $pid = `docker inspect --format '{{.State.Pid}}' $container_id`);
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die "Couldn't get process ID for that container!\n" unless $pid;
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# Enter the docker container.
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exec("nsenter --target $pid --mount --uts --ipc --net --pid");
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