Mirroring my old RPM CentOS6 REPO

As you know, we made some interesting RPM packages while I was an employee of Enetres.

Obviously, I lost the access to the repo when I left that company and, after 8 years working on RPMs, in my new position, we are not working on RPM packages anymore. Just in case, I made again all the pkgs in a new repo preserving versions. I don't know what strategy will have my last company in the future so I would like to preserve that work for the people who is using legacy or deprecated software without any other possible option to choose.

Bintray seems to have a good and free account. I made 256 CentOS6 packages again and the configuration steps for this mirror are easy:

Run the following to get a generated .repo file:

1. wget https://bintray.com/vicendominguez/CentOS6/rpm -O /etc/yum.repos.d/bintray-vicendominguez-CentOS6.repo
   or - Copy this text into a 'bintray-vicendominguez-CentOS6.repo' file on your Linux machine:
   #bintraybintray-vicendominguez-CentOS6 - packages by vicendominguez from Bintray [bintraybintray-vicendominguez-CentOS6] name=bintray-vicendominguez-CentOS6 baseurl=https://dl.bintray.com/vicendominguez/CentOS6 gpgcheck=0 repo_gpgcheck=0 enabled=1
2. sudo mv bintray-vicendominguez-CentOS6.repo /etc/yum.repos.d/

If I have to make a new version of this packages... I will bump it here, in this one.

Thx...

Helper script to multiupload RPM files to Bintray repo (and remove packages too)

If you have a big local rpm repo and you would like to upload all the packages to Bintray, I  have forked and "have improved" the hgomez shell scripts.

The "upload shell script" is updated to the current Bintray API and i have improved the output.

The "delete shell script" is just to remove version of packages from Bintray which you have in the local storage but you didn't want in Bintray (and they were uploaded previously). It is a proof of concept for the API, nothing else.

Two details:

• In the delete-script, I chose to use $1 parameter to point to the files (with wildcards).
• In the upload-script, RPMS_DIRS is used in the upload curl url, so be careful here. We are using relative path to avoid a long path in the Bintray web.

RPM GPAC 0.6.1 for CentOS6

Our own version of GPAC is ready. Version 0.6.1 without any X dependencies.

gpac-0.6.1-1_noX.el6.x86_64

Four binaries:

[root@core ~]# rpm -ql gpac |grep bin
/usr/bin/DashCast
/usr/bin/MP42TS
/usr/bin/MP4Box
/usr/bin/MP4Client

Compilation flags:

[root@core ~]# MP4Box -version
MP4Box - GPAC version 0.6.1-revrelease
GPAC Copyright (c) Telecom ParisTech 2000-2012
GPAC Configuration: --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --target=x86_64-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --extra-cflags=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC -DPIC -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D_LARGEFILE_SOURCE=1 -D_GNU_SOURCE=1 --enable-debug --libdir=lib64 --disable-oss-audio --disable-x11 --disable-static --use-js=no
Features: GPAC_64_BITS GPAC_HAS_SSL GPAC_HAS_JPEG GPAC_HAS_PNG 

You'll find it in my bintray repo as always: https://bintray.com/vicendominguez/CentOS6/gpac

:)

git commit and the error: There was a problem with the editor 'vi'.

Error message:

error: There was a problem with the editor 'vi'.
Please supply the message using either -m or -F option.

Quick solution:

git config --global core.editor $(which vim)

Short-reason: If you are using vundler, or similar, you could find this error.
Issue: https://github.com/VundleVim/Vundle.vim/issues/167

'include:' statement in Ansible does not find the correct path running on Vagrant

What is the issue?

You have a include statement inside a role but when the playbook is running on Vagrant, that path doesn't exist!!

Tree:

├── playbook.yml
└── roles
    ├── base
    │   ├── README.md
    │   ├── defaults
    │   │   └── main.yml
    │   ├── files
    │   ├── handlers
    │   │   └── main.yml
    │   ├── meta
    │   │   └── main.yml
    │   ├── tasks
    │   │   ├── main.yml
    │   │   ├── setup_debian.yml
    │   │   └── setup_rhel.yml
    │   ├── templates
    │   └── vars
    │       └── main.yml

In tasks/main.yml we have:

- name: Trying to update base installation on RedHat
  include: setup_rhel.yml
  when: ansible_os_family == 'RedHat'

- name: Trying to update base installation on Debian
  include: setup_debian.yml
  when: ansible_os_family == 'Debian'

If you run the playbook.yml in a Vagrant box you could see this error message:

FAILED! => {"failed": true, "reason": "the file_name '/Users/vicente/vagrant/ansible/playbooks/setup_debian.yml' does not exist, or is not readable"}

Well, this is the new tasks/main.yml to solve it:

---
# Include OS-specific installation tasks.
- name: Trying to update base installation on RedHat
  include: "{{ role_path }}/tasks/setup_rhel.yml"
  when: ansible_os_family == 'RedHat'

- name: Trying to update base installation on Debian
  include: "{{ role_path }}/tasks/setup_debian.yml"
  when: ansible_os_family == 'Debian'

:)

Magic Reboot - Emergency Reboot

Hi guys!

Context:  I want to reboot but.....

# reboot bash: /sbin/reboot: Input/output error 
# shutdown -r now bash: /sbin/shutdown: Input/output error

Solution:

echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger
 

ffmpeg v2.8.6 + libx265 + libfdk-aac RPM for CentOS 6

I have created some RPMs from the newest version (v2 branch) of ffmpeg tool for CentOS 6:

[root@core ~]# ffmpeg
ffmpeg version 2.8.6 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --disable-static --enable-runtime-cpudetect --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --enable-pthreads --enable-x11grab --enable-vdpau --disable-avisynth --enable-libdc1394 --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-bzlib --enable-libass --enable-libdc1394 --enable-libfreetype --enable-openal --enable-libopus --enable-libpulse --enable-libv4l2 --disable-debug --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --disable-stripping --extra-libs=-lstdc++ --enable-libfdk-aac --enable-nonfree
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Hyper fast Audio and Video encoder

Yes! I added x265 and libfdk-aac (used in Android) :)))

As always, available in the repo: https://bintray.com/vicendominguez/CentOS6/ffmpeg

Autoregistration of Raspberries/Servers with the same hostname on Zabbix

Possible project

• At least, 200x Raspberries in different locations 
• We can have two or three Raspberries in the same location.
• Firewall in all locations
• No starting date known
• Instalallation from the same image so the hostname is the same in all of them.
• Nobody can log in

Question

 How to monitor those Raspberries with Zabbix?

Key

Zabbix (2.2) uses the hostname as key field. It's not possible to repeat that hostname in the server so, how to proceed?

Workflow

This is my workflow:

In zabbix-agent:

• Configure agent as active, disable passive (firewall installed, do you remember it?)
• I need to create a random hostname but i need to identify each Raspberry in the same/different locations. So i created this python script to get a hostname (i chose publicip-macaddress name):

I had to change the ":" in the macaddr to "_" because ":" is not valid char for the hostname field.

In the agent config you will need to run this script, two keys here:

EnableRemoteCommands=1
HostnameItem=system.run["/usr/local/bin/get_macname.py"]

You will need to put a Meta for the autoregister:

HostMetadata=RaspberryCol

The agent is ready. 

For the server you will need to clone a OS Linux template to convert it as Active. You will need to change the Type item by item in the cloned template:

Now the new autoregistration rule.

Create a new Action and:

And:

That's all.