goneri

time tar xf linux-4.16.tar.xz

8.66user 3.54system 0:24.59elapsed 49%CPU (0avgtext+0avgdata 67960maxresident)k
27584inputs+2407560outputs (1major+16680minor)pagefaults 0swaps

time rm -rf linux-4.16
0.02user 1.65system 0:02.02elapsed 82%CPU (0avgtext+0avgdata 2172maxresident)k
2848inputs+136584outputs (0major+255minor)pagefaults 0swaps

goneri

/Td6WFoAAATm1rRGAgAhARYAAAB0L+Wj4AaEA4hdACUbyEIDNeL9gcY77edfaA5PYdwdu0pK3YJ+
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goneri

sudo ansible localhost -b -m lineinfile -a "path=/etc/resolv.conf regexp='(^nameserver 100\.|delllab)' state=absent"

goneri

for i in $(openstack server list --format json|jq -r '.[].Networks'); do
    eval $i
    ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no heat-admin@${ctlplane} sudo subscription-manager unregister
done

goneri

Enable storage.delete.enabled in /etc/docker-distribution/registry/config.yml and restart docker-distribution:

    storage:
        delete:
            enabled: true

List existing images:
curl -vv -X GET 172.17.0.5:5000/v2/_catalog

List tags for a given image:

goneri

Fatal: Application Error: Cannot grant permissions to unsigned jars. Application requested security permissions, but jars are not signed.)

sudo vi /etc/crypto-policies/back-ends/java.config

Find: jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024

Drop MD5, save and you're done.

goneri

#!/usr/bin/env python

from dciclient.v1.api import context as dci_context
from dciclient.v1.api import job as dci_job
from dciclient.v1.api import job as dci_component
from dciclient.v1.api import topic as dci_topic


class Topic():
    def __init__(self, context, topic_name):

goneri

export LIBGUESTFS_BACKEND=direct

sudo yum install -y libguestfs-tools
cp overcloud-full.qcow2 overcloud-full.tmp.qcow2
virt-customize \
    --memsize 2000 \
    --add overcloud-full.tmp.qcow2 \
    --sm-credentials "$login:password:$password" \
    --sm-register \
    --sm-attach "pool:$pool_id" \

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dstat --bw -D sda,nvme0n1

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import json
import subprocess

def print_result(oc_hosts_by_nova_id, groups):
    print("undercloud ansible_user=stack\n")
    for i in oc_hosts_by_nova_id.values():
        str_fmt = (
            "%(Name)s ansible_host=%(IpAddress)s "
            "ansible_user=heat-admin ansible_ssh_common_args='"
            " -o ProxyJump=stack@undercloud'")