Blog v0.1

2019-08-10 23:00:19 +02:00 · 2019-08-10 23:00:19 +02:00 · be2d382c0b
commit be2d382c0b
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+.. post:: 2019.08.10
+   :tags: howto,ubuntu,gnu/linux,installation
+   :category: gnu/linux
+   :author: vladan
+   :location: Belgrade
+
+===========================
+AutomaticCRM Ubuntu Desktop
+===========================
+
+Below are the steps taken to create the Ubuntu 18.04.2 installer for the needs
+of AutomaticCRM according to the requirements ...
+
+    Operating system
+
+    * Only one domain is allowed ( dev.automaticcrm.ai ) in network adapter
+    * No print screen functionality
+    * No usb memory functionality
+    * No access to the filesystem
+    * No apps except browser
+
+
+
+Steps to set up the build environment
+=====================================
+
+
+.. code-block:: bash
+
+   mkdir disk
+   sudo mount -o ubuntu-18.04.2-desktop-amd64.iso disk
+   rsync --exclude=/casper/filesystem.squashfs -av disk/ livecd/
+
+
+Set up the rootfs
+=================
+
+.. code-block:: bash
+
+   unsquashfs disk/casper/filesystem.squashfs
+   sudo systemd-nspawn \
+       --directory squashfs-root/ \
+       --bind ~/dev/automaticcrm/deb:/opt/deb  
+       --bind /etc/resolv.conf /bin/bash
+
+Once in the shell, run these commands:
+
+.. code-block:: bash
+
+    apt-get update
+    apt-get -y purge \
+        usb-creator-common \
+        usb-creator-gtk \
+        thunderbird-gnome-support \
+        thunderbird \
+        remmina-common \
+        remmina \
+        remmina-plugin-rdp \
+        remmina-plugin-vnc \
+        firefox* \
+        libreoffice* \
+        alsa* \
+        cups* \
+        gnome-screenshot \
+        evince \
+        gedit
+
+    dpkg -i /opt/deb/google-chrome-stable_current_amd64.deb
+
+
+Restrict domains
+================
+
+To redirect all domains to localhost, except dev.automaticcrm.ai, create the
+file ``/etc/dnsmasq.d/autocrm.conf`` with these lines:
+
+.. code-block:: ini
+
+    address=/#/127.0.0.1
+    server=/dev.automaticcrm.ai/8.8.8.8
+
+Add this line to /etc/dnsmasq.conf
+
+.. code-block:: ini
+
+    conf-dir=/etc/dnsmasq.d
+
+
+Run Chrome ONLY
+===============
+
+Override the path for all users.
+
+Edit the desktop entry in ``/usr/share/xsessions/ubuntu.desktop`` so it starts
+Chrome in fullscreen mode:
+
+.. code-block:: ini
+
+    [Desktop Entry]
+    Name=Ubuntu
+    Comment=This session logs you into Ubuntu
+    Exec=env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/google-chrome --kiosk https://dev.automaticcrm.ai
+    Type=Application
+    DesktopNames=ubuntu:AutomaticCRM
+    X-Ubuntu-Gettext-Domain=gnome-session-3.0
+
+.. note::
+
+    If you want to change the domain, edit this file and also enable it in the
+    dnsmqsq config above.
+
+Remove USB drivers
+==================
+
+.. code-block:: bash
+
+    printf "\n#AutomaticCRM disabled modules\nblacklist uas\nblacklist usb_storage\n" >> /etc/modprobe.d/blacklist.conf
+
+
+Create the ISO
+==============
+
+Pack the squashfs image and copy it to casper.
+
+.. code-block:: bash
+
+    sudo mksquashfs squashfs-root/ livecd/casper/filesystem.squashfs
+
+
+Recreate installation files and pack the ISO.
+
+.. code-block:: bash
+
+    printf $(sudo du -sx --block-size=1 squashfs-root | cut -f1) > livecd/casper/filesystem.size
+    sudo systemd-nspawn --directory squashfs-root/ dpkg-query -W --showformat='${Package} ${Version}\n' > livecd/casper/filesystem.manifest
+    sudo cp livecd/casper/filesystem.manifest{,-desktop}
+    sudo rm livecd/md5sum.txt && sudo find livecd/ -type f -print0 | sudo xargs -0 md5sum | grep -v isolinux/boot.cat | sudo tee livecd/md5sum.txt
+
+    mkisofs -r \
+        -V "AutomaticCRM Ubuntu Linux" \
+        -cache-inodes \
+        -J -l -b isolinux/isolinux.bin \
+        -c isolinux/boot.cat -no-emul-boot \
+        -boot-load-size 4 \
+        -boot-info-table \
+        -o automaticcrm-ubuntu-18.04.2.iso livecd/
+
+Test the installation in a vm
+=============================
+
+.. code-block:: bash
+
+    rm -f ubuntu.qcow2
+    qemu-img create -f qcow2 ubuntu.qcow2 40G
+    virsh define ./autocrm.xml && virsh start ubuntu18.04