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Apptainer: Difference between revisions
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Software that is run inside a container is in an environment that uses different libraries and tools than what is installed on the host system. It is, therefore, important to run programs within containers by <b>not</b> using any environment settings or software defined outside of the container. Unfortunately, by default, Apptainer will run adopting the shell environment of the host and this can result in issues when running programs. To avoid such issues, when using <code>apptainer run</code>, <code>apptainer shell</code>, <code>apptainer exec</code>, and/or < | Software that is run inside a container is in an environment that uses different libraries and tools than what is installed on the host system. It is, therefore, important to run programs within containers by <b>not</b> using any environment settings or software defined outside of the container. Unfortunately, by default, Apptainer will run adopting the shell environment of the host and this can result in issues when running programs. To avoid such issues, when using <code>apptainer run</code>, <code>apptainer shell</code>, <code>apptainer exec</code>, and/or <code>apptainer instance</code>, use one of these options: | ||
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|+Apptainer Environment Command Line Options | |+Apptainer Environment Command Line Options | ||
|- | |- | ||
| <code>-C</code> || Isolates the running container from all file systems as well as the parent PID, IPC, and environment. Using this option will require [[#Bind_Mounts|using bind mounts]] if access to filesystems outside of the container is needed. | | <code>-C</code> || Isolates the running container from all file systems as well as the parent PID, IPC, and environment. Using this option will require [[#Bind_Mounts|using bind mounts]] if access to filesystems outside of the container is needed. | ||