根据pid查看容器名

#!/bin/bash -e
# Prints the name of the container inside which the process with a PID on the host is.
function getName() {
    local pid="$1"
    if [[ -z "$pid" ]]; then
        echo "Missing host PID argument."
        exit 1
    fi
    if [ "$pid" -eq "1" ]; then
        echo "Unable to resolve host PID to a container name."
        exit 2
    fi
    # ps returns values potentially padded with spaces, so we pass them as they are without quoting.
    local parentPid="$(ps -o ppid= -p $pid)"
    local containerId="$(ps -o args= -f -p $parentPid | grep docker-containerd-shim | cut -d ' ' -f 2)"
    if [[ -n "$containerId" ]]; then
        local containerName="$(docker inspect --format '{{.Name}}' "$containerId" | sed 's/^\///')"
        if [[ -n "$containerName" ]]; then
            echo "$containerName"
        else
            echo "$containerId"
        fi
    else
        getName "$parentPid"
    fi
}
getName "$1"