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  1. Facter
  2. FACT-2737

facter uptime shows host uptime inside docker container

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      When getting the uptime inside a docker container, the kernel will report the host uptime. In order to get the container uptime, we should get the uptime of PID 1, that is the process that starts when the container is starting.

      To get the running time of pid 1 inside the container, we use

      ps -o etime= -p "1"
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      When getting the uptime inside a docker container, the kernel will report the host uptime. In order to get the container uptime, we should get the uptime of PID 1, that is the process that starts when the container is starting. To get the running time of pid 1 inside the container, we use ps -o etime= -p "1"
    • Needs Assessment

    Description

      When getting the uptime inside a docker container, the kernel will report the host uptime. In order to get the container uptime, we should get the uptime of PID 1, that is the process that starts when the container is starting.

      To get the running time of pid 1 inside the container, we use 

      ps -o etime= -p "1"

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            bogdan.irimie Bogdan Irimie
            florin.dragos Florin Dragos
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