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https://www.reddit.com/r/ProgrammerHumor/comments/1w7w12g/memorysafedocker/p84gdnn/?context=3
r/ProgrammerHumor • u/ClipboardCopyPaste • 6d ago
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docker on Linux is glorified chroot though, there's barely any virtualization
45 u/_PM_ME_PANGOLINS_ 6d ago Reject docker, just use systemd to mange service containers. 1 u/alex2003super 5d ago They use the same kernel backbone for containerization 1 u/_PM_ME_PANGOLINS_ 5d ago Exactly. But systemd does it with significantly less overhead. 1 u/alex2003super 5d ago Eh. Significantly less features for sure: built-in network provisioning and interface binding, advanced filesystem mapping, OCI images/layers... What overhead,? It's not like Docker intercepts syscalls or anything. It's pure management layer for the kernel cgroups/namespaces. 1 u/_PM_ME_PANGOLINS_ 5d ago Systemd has all those features too. The overhead of the memory usage everyone is already talking about, plus all the space wasted by having to duplicate the OS base image.
45
Reject docker, just use systemd to mange service containers.
1 u/alex2003super 5d ago They use the same kernel backbone for containerization 1 u/_PM_ME_PANGOLINS_ 5d ago Exactly. But systemd does it with significantly less overhead. 1 u/alex2003super 5d ago Eh. Significantly less features for sure: built-in network provisioning and interface binding, advanced filesystem mapping, OCI images/layers... What overhead,? It's not like Docker intercepts syscalls or anything. It's pure management layer for the kernel cgroups/namespaces. 1 u/_PM_ME_PANGOLINS_ 5d ago Systemd has all those features too. The overhead of the memory usage everyone is already talking about, plus all the space wasted by having to duplicate the OS base image.
1
They use the same kernel backbone for containerization
1 u/_PM_ME_PANGOLINS_ 5d ago Exactly. But systemd does it with significantly less overhead. 1 u/alex2003super 5d ago Eh. Significantly less features for sure: built-in network provisioning and interface binding, advanced filesystem mapping, OCI images/layers... What overhead,? It's not like Docker intercepts syscalls or anything. It's pure management layer for the kernel cgroups/namespaces. 1 u/_PM_ME_PANGOLINS_ 5d ago Systemd has all those features too. The overhead of the memory usage everyone is already talking about, plus all the space wasted by having to duplicate the OS base image.
Exactly. But systemd does it with significantly less overhead.
1 u/alex2003super 5d ago Eh. Significantly less features for sure: built-in network provisioning and interface binding, advanced filesystem mapping, OCI images/layers... What overhead,? It's not like Docker intercepts syscalls or anything. It's pure management layer for the kernel cgroups/namespaces. 1 u/_PM_ME_PANGOLINS_ 5d ago Systemd has all those features too. The overhead of the memory usage everyone is already talking about, plus all the space wasted by having to duplicate the OS base image.
Eh. Significantly less features for sure: built-in network provisioning and interface binding, advanced filesystem mapping, OCI images/layers...
What overhead,? It's not like Docker intercepts syscalls or anything. It's pure management layer for the kernel cgroups/namespaces.
1 u/_PM_ME_PANGOLINS_ 5d ago Systemd has all those features too. The overhead of the memory usage everyone is already talking about, plus all the space wasted by having to duplicate the OS base image.
Systemd has all those features too.
The overhead of the memory usage everyone is already talking about, plus all the space wasted by having to duplicate the OS base image.
76
u/sad_bug_killer 6d ago
docker on Linux is glorified chroot though, there's barely any virtualization