diff --git a/.gitignore b/.gitignore
index b363b2f260303ada406cd23d23755bcd4ac780d9..7a54c0504759e0af447900b362eddc60c90e3047 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,14 @@
 *.img
 *.swp
 *.simg
+*.sif
+CentOS/7.7
 CentOS-7.5
 CentOS/7.5-intel
 CentOS/7.5-VARROC
 CentOS/7.5-DHI
 CentOS/7.5-ESPRESO/CentOS-7.5-ESPRESO.simg.backup
 CentOS/7.6-DHI
-OpenFOAM/
-Ubuntu/16.04-OpenFOAM/
+OpenFOAM
+Ubuntu/16.04-OpenFOAM
 Fedora/29/Fedora-29_201901251221
diff --git a/install/CENTOS6 b/install/CENTOS6
new file mode 100644
index 0000000000000000000000000000000000000000..ddb2a90282c865049e5663857e719433c18548ac
--- /dev/null
+++ b/install/CENTOS6
@@ -0,0 +1,56 @@
+Bootstrap: docker
+From: centos:6
+
+%post
+yum -y update && yum -y upgrade
+
+# CentOS repo
+yum -y install python gcc make wget vim mc procps tcl gcc-c++ gcc-gfortran pkg-config acl acpid alsa-lib alsa-lib-devel amtu apr aspell at atk atk-devel attr audit audit-libs audit-libs-python authconfig autoconf autofs automake avahi-glib avahi-libs basesystem bash bc bind-libs bind-utils binutils binutils-devel bison bison-devel bluez-libs bridge-utils busybox bzip2 bzip2-devel bzip2-libs ca-certificates cairo cairo-devel c-ares ccid cdparanoia-libs centos-indexhtml centos-release checkpolicy chkconfig cloog-ppl compat-libcap1 compat-libstdc++-33 compat-readline5 ConsoleKit ConsoleKit-libs coolkey coreutils coreutils-libs cpio cpp cppunit cpupowerutils cpuspeed cracklib cracklib-dicts crash crda cronie cronie-anacron crontabs cryptsetup-luks cryptsetup-luks-libs cups cups-libs curl cvs cyrus-sasl cyrus-sasl-devel cyrus-sasl-gssapi cyrus-sasl-lib cyrus-sasl-plain dash db4 db4-cxx db4-devel db4-utils dbus dbus-devel dbus-glib dbus-glib-devel dbus-libs dbus-python dejavu-fonts-common dejavu-lgc-sans-mono-fonts dejavu-sans-mono-fonts desktop-file-utils device-mapper device-mapper-event device-mapper-event-libs device-mapper-libs device-mapper-multipath device-mapper-multipath-libs device-mapper-persistent-data diffutils dmidecode dmraid dmraid-events dmz-cursor-themes docbook-dtds docbook-style-dsssl docbook-style-xsl docbook-utils dos2unix dosfstools dracut dracut-kernel dracut-network dump e2fsprogs e2fsprogs-devel e2fsprogs-libs ed eggdbus eject elfutils-libelf elfutils-libelf-devel elfutils-libs emacs emacs-common environment-modules ethtool expat expat-devel expect file file-devel file-libs filesystem findutils finger fipscheck fipscheck-lib flac fontconfig fontconfig-devel fontpackages-filesystem foomatic foomatic-db foomatic-db-filesystem foomatic-db-ppds freeglut freeglut-devel freetype freetype-devel ftp fuse fuse-libs gamin gamin-python gawk gcc gcc-c++ gcc-gfortran GConf2 GConf2-devel gd gdb gdbm gdbm-devel gdk-pixbuf2 gdk-pixbuf2-devel genisoimage gettext gettext-devel gettext-libs ghostscript ghostscript-fonts giflib git glib2 glib2-devel glibc glibc-common glibc-debuginfo glibc-debuginfo-common glibc-devel glibc-headers glx-utils gmp gmp-devel gnome-icon-theme gnome-keyring gnome-keyring-devel gnome-themes gnome-vfs2 gnome-vfs2-devel gnupg2 gnuplot gnuplot-common gnutls gnutls-devel gperf gpgme gpm gpm-libs grep groff grub grubby gstreamer gstreamer-plugins-base gstreamer-tools gtk2 gtk2-devel gtk2-engines gtk-doc gzip hal hal-devel hal-info hal-libs hdparm hesiod hicolor-icon-theme hunspell hwdata hwloc hwloc-devel ilmbase ImageMagick indent info initscripts iproute iptables iptables-ipv6 iptstate iputils irqbalance iscsi-initiator-utils iso-codes iw jasper-libs jwhois kbd kbd-misc kernel kernel kernel-devel kernel-firmware kernel-headers keyutils keyutils-libs keyutils-libs-devel kpartx krb5-devel krb5-libs krb5-workstation ksh lcms-libs less lftp libacl libacl-devel libaio libart_lgpl libart_lgpl-devel libasyncns libattr libattr-devel libbasicobjects libblkid libbonobo libbonobo-devel libbonoboui libbonoboui-devel libcanberra libcanberra-gtk2 libcap libcap-devel libcap-ng libcgroup libcollection libcom_err libcom_err-devel libcroco libcroco-devel libcxgb3 libcxgb4 libdaemon libdhash libdrm libdrm-devel libedit libedit-devel libevent libexif libffi libfontenc libgcc libgcj libgcrypt libgcrypt-devel libgfortran libglade2 libglade2-devel libgnome libgnomecanvas libgnomecanvas-devel libgnome-devel libgomp libgpg-error libgpg-error-devel libgsf libgsf-devel libgssglue libgudev1 libhugetlbfs libibcm libibcm-devel libibverbs libibverbs-devel libibverbs-devel-static libibverbs-utils libICE libICE-devel libicu libIDL libIDL-devel libidn libidn-devel libini_config libipa_hbac libjpeg-turbo libjpeg-turbo-devel libldb libmcpp libmlx4 libmlx5 libmng libmng-devel libmthca libmthca-static libnetfilter_conntrack libnfnetlink libnih libnl libnl-devel libnotify libogg liboil libotf libpath_utils libpcap libpciaccess libpciaccess-devel libpng libpng-devel libproxy libproxy-bin libproxy-python libref_array librsvg2 librsvg2-devel libselinux libselinux-devel libselinux-python libselinux-utils libsemanage libsepol libsepol-devel libSM libSM-devel libsndfile libss libssh2 libsss_idmap libstdc++ libstdc++-devel libsysfs libsysfs-devel libtalloc libtasn1 libtasn1-devel libtdb libtevent libthai libtheora libtiff libtiff-devel libtirpc libtool-ltdl libudev libudev-devel libunistring libusb libusb1 libusb-devel libuser libutempter libuuid libvisual libvorbis libwmf libwmf-lite libwnck libX11 libX11-common libX11-devel libXau libXau-devel libXaw libXaw-devel libxcb libxcb-devel libXcomposite libXcomposite-devel libXcursor libXcursor-devel libXdamage libXdamage-devel libXdmcp libXdmcp-devel libXext libXext-devel libXfixes libXfixes-devel libXfont libXft libXft-devel libXi libXi-devel libXinerama libXinerama-devel libxkbfile libxml2 libxml2-devel libxml2-python libXmu libXmu-devel libXp libXpm libXpm-devel libXrandr libXrandr-devel libXrender libXrender-devel libXres libXScrnSaver libXScrnSaver-devel libxslt libxslt-devel libXt libXt-devel libXtst libXtst-devel libXv libXv-devel libXxf86misc libXxf86misc-devel libXxf86vm libXxf86vm-devel lm_sensors-libs lockdev logrotate lsof lvm2 lvm2-libs lynx lzo m17n-db m17n-db-datafiles m17n-lib m2crypto m4 mailcap mailx make MAKEDEV man man-pages mc mcpp mcstrans mdadm mesa-dri1-drivers mesa-dri-drivers mesa-dri-filesystem mesa-libGL mesa-libGL-devel mesa-libGLU mesa-libGLU-devel mesa-private-llvm mgetty microcode_ctl mingetty mkbootdisk mlocate module-init-tools mpfr mtools mtr mysql-libs nano nc ncurses ncurses-base ncurses-devel ncurses-libs net-snmp net-snmp-libs net-tools newt newt-python nfs-utils nfs-utils-lib nmap notification-daemon nscd nspr nspr-devel nss nss_db nss-devel nss-softokn nss-softokn-debuginfo nss-softokn-devel nss-softokn-freebl nss-softokn-freebl-devel nss-sysinit nss-tools nss-util nss-util-devel ntp ntpdate ntsysv OpenEXR-libs OpenIPMI OpenIPMI-libs openjade openjpeg-libs openldap openldap-devel openmotif openmotif22 opensp openssh openssh-clients openssh-server ORBit2 ORBit2-devel p11-kit p11-kit-trust pam pam-devel pam_krb5 pam_passwdqc pam_pkcs11 pango pango-devel paps paps-libs parted passwd patch pax pciutils pciutils-devel pciutils-libs pcmciautils pcp pcp-conf pcp-libs pcre pcsc-lite pcsc-lite-libs perf perl perl-AppConfig perl-Authen-SASL perl-Bit-Vector perl-Carp-Clan perl-CGI perl-Class-Singleton perl-Compress-Raw-Zlib perl-Compress-Zlib perl-Convert-ASN1 perl-Crypt-PasswdMD5 perl-Date-Calc perl-Date-Manip perl-DateTime perl-DBD-Pg perl-DBI perl-devel perl-Digest-HMAC perl-Digest-SHA1 perl-Error perl-ExtUtils-MakeMaker perl-ExtUtils-ParseXS perl-File-Which perl-Git perl-GSSAPI perl-HTML-Parser perl-HTML-Tagset perl-IO-Compress-Base perl-IO-Compress-Zlib perl-IO-Socket-SSL perl-JSON perl-LDAP perl-libs perl-libwww-perl perl-List-MoreUtils perl-Module-Pluggable perl-Net-LibIDN perl-Net-SSLeay perl-Net-Telnet perl-Params-Validate perl-PCP-PMDA perl-Pod-Escapes perl-Pod-Simple perl-SGMLSpm perl-Socket6 perl-String-CRC32 perl-TermReadKey perl-Test-Harness perl-Test-Simple perl-Text-Iconv perl-Time-HiRes perl-URI perl-version perl-WWW-Curl perl-XML-Filter-BufferText perl-XML-LibXML perl-XML-NamespaceSupport perl-XML-Parser perl-XML-SAX perl-XML-SAX-Writer perl-XML-Simple perl-YAML-Syck pinentry pinfo pixman pixman-devel pkgconfig plymouth plymouth-core-libs plymouth-scripts pm-utils policycoreutils polkit poppler poppler-data poppler-utils popt popt-devel portreserve postfix postgresql postgresql-devel postgresql-libs postgresql-odbc ppl ppp prelink procmail procps psacct psmisc pth pulseaudio-libs pycairo pycairo-devel pygobject2 pygobject2-codegen pygobject2-devel pygobject2-doc pygpgme pygtk2 pygtk2-codegen pygtk2-devel pygtk2-doc pyOpenSSL pytalloc python python-argparse python-devel python-iniparse python-libs python-pcp python-pycurl python-setuptools python-sssdconfig python-urlgrabber qt qt3 qt-sqlite qt-x11 quota rarian rarian-compat rdate rdma readahead readline readline-devel redhat-logos redhat-lsb redhat-lsb-compat redhat-lsb-core redhat-lsb-graphics redhat-lsb-printing redhat-menus redhat-rpm-config rmt rootfiles rpcbind rpm rpm-devel rpm-libs rpm-python rp-pppoe rrdtool rsh rsync ruby ruby-libs samba samba4-libs samba-common samba-winbind samba-winbind-clients screen SDL SDL-devel sed selinux-policy setserial setup setuptool sgml-common sgpio shadow-utils shared-mime-info slang smartmontools snappy sos sound-theme-freedesktop sqlite sqlite-devel sssd sssd-ad sssd-client sssd-common sssd-common-pac sssd-ipa sssd-krb5 sssd-krb5-common sssd-ldap sssd-proxy startup-notification startup-notification-devel strace stunnel sudo swig symlinks sysfsutils syslinux syslinux-nonlinux sysstat system-gnome-theme system-icon-theme systemtap-devel sysvinit-tools t1lib talk tar tcl tcl-devel tcpdump tcp_wrappers tcp_wrappers-libs tcsh telnet time tk tmpwatch traceroute tree tunctl tzdata udev udftools unix2dos unixODBC unixODBC-devel unzip upstart urw-fonts usbutils usermode ustr util-linux-ng vconfig vim-common vim-enhanced vim-filesystem vim-minimal virt-what wget which wireless-tools words wpa_supplicant xcb-util xdg-utils xerces-c xerces-c-devel xinetd xkeyboard-config xml-common xmlrpc-c xmlrpc-c-client xorg-x11-fonts-100dpi xorg-x11-fonts-75dpi xorg-x11-font-utils xorg-x11-proto-devel xorg-x11-server-common xorg-x11-server-utils xorg-x11-xauth xorg-x11-xkb-utils xterm xz xz-libs xz-lzma-compat ypbind yp-tools yum yum-metadata-parser yum-plugin-auto-update-debug-info yum-plugin-fastestmirror yum-plugin-priorities yum-plugin-security yum-plugin-versionlock yum-utils zip zlib zlib-devel
+
+yum -y groupinstall "Development Tools"
+
+cd /tmp
+
+# OpenMPI
+wget https://www.open-mpi.org/software/ompi/v2.1/downloads/openmpi-2.1.1.tar.gz
+tar xvf openmpi-2.1.1.tar.gz && cd openmpi-2.1.1
+./configure --prefix=/usr/local
+make -j 16
+make install
+
+# lua
+yum -y install lua lua-devel
+
+# lua posix and dependencies
+wget https://github.com/luarocks/luarocks/archive/v2.4.2.tar.gz
+tar xvf v2.4.2.tar.gz
+cd luarocks-2.4.2
+./configure
+make build
+make install
+mkdir ~/.luarocks
+echo "fs_use_modules = false" > ~/.luarocks/config.lua
+luarocks install luaposix
+luarocks install luafilesystem
+LUAROCKS_PREFIX=/usr/local
+export LUA_PATH="$LUAROCKS_PREFIX/share/lua/5.1/?.lua;$LUAROCKS_PREFIX/share/lua/5.1/?/init.lua;;"
+export LUA_CPATH="$LUAROCKS_PREFIX/lib/lua/5.1/?.so;;"
+
+# Lmod
+wget https://github.com/TACC/Lmod/archive/7.7.7.tar.gz
+tar xvf 7.7.7.tar.gz
+cd Lmod-7.7.7
+./configure --prefix=/opt/apps
+make install
+
+# APPS and SCRATCH
+mkdir /apps
+mkdir /scratch
+
+%environment
+source /opt/apps/lmod/7.7.7/init/profile
+clearMT
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
+export -f ml
+export -f module
+export -f clearMT
diff --git a/install/CENTOS77 b/install/CENTOS77
new file mode 100644
index 0000000000000000000000000000000000000000..29bd2a00d12183e2475eb84a2c3a495fc636dcd7
--- /dev/null
+++ b/install/CENTOS77
@@ -0,0 +1,63 @@
+Bootstrap: docker
+From: centos:7
+
+%post
+yum -y update && yum -y upgrade
+
+# CentOS repo
+
+yum -y install bash-completion pigz tmux
+
+yum -y groupinstall "Development Tools"
+
+yum -y install perf perftest gperf nano vim mc symlinks telnet net-tools ipmitool smartmontools wget ntp openssh-ldap sssd tmux lsof strace psmisc tcsh libffi-devel screen libfabric libfabric-devel time samba ksh zsh libsecret-devel libcap-devel libxslt docbook-style-xsl nfs-utils.x86_64 nfs4-acl-tools bind-utils edac-utils tcl tcl-devel
+
+#X11
+yum -y install libXdmcp libXfont2 libXxf86misc libxkbfile libXtst libX11-devel mesa-libGLU mesa-dri-drivers mesa-filesystem mesa-private-llvm xkeyboard-config xorg-x11-server-utils xorg-x11-xauth xorg-x11-xinit xorg-x11-xkb-utils motif motif-devel gtk3
+
+
+cd /tmp
+
+# OpenMPI
+wget https://www.open-mpi.org/software/ompi/v2.1/downloads/openmpi-2.1.1.tar.gz
+tar xvf openmpi-2.1.1.tar.gz && cd openmpi-2.1.1
+./configure --prefix=/usr/local
+make -j 16
+make install
+
+# pip
+curl -s -O https://bootstrap.pypa.io/get-pip.py
+python get-pip.py
+
+pip install setuptools numpy scipy pandas wheel --upgrade
+
+# lua
+wget http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/l/lua-posix-32-2.el7.x86_64.rpm
+wget http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/l/lua-filesystem-1.6.2-2.el7.x86_64.rpm
+wget http://mirror.centos.org/centos/7/os/x86_64/Packages/lua-devel-5.1.4-15.el7.x86_64.rpm
+wget http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/l/lua-bitop-1.0.2-3.el7.x86_64.rpm
+
+rpm -ihv lua-devel-5.1.4-15.el7.x86_64.rpm
+rpm -ihv lua-filesystem-1.6.2-2.el7.x86_64.rpm
+rpm -ihv lua-bitop-1.0.2-3.el7.x86_64.rpm
+rpm -ihv lua-posix-32-2.el7.x86_64.rpm
+
+# Lmod
+wget https://github.com/TACC/Lmod/archive/7.7.7.tar.gz
+tar xvf 7.7.7.tar.gz
+cd Lmod-7.7.7
+./configure --prefix=/opt/apps
+make install
+
+# APPS and SCRATCH
+mkdir /apps
+mkdir /scratch
+
+%environment
+source /opt/apps/lmod/7.7.7/init/profile
+clearMT
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
+export -f ml
+export -f module
+export -f clearMT
+
diff --git a/install/CENTOS8 b/install/CENTOS8
new file mode 100644
index 0000000000000000000000000000000000000000..6969a4c15c5b87e2dafb71ba56052b9f94791290
--- /dev/null
+++ b/install/CENTOS8
@@ -0,0 +1,41 @@
+Bootstrap: docker
+From: centos:8
+
+%post
+yum -y update && yum -y upgrade
+
+# Packages
+yum -y install wget vim mc gcc rpm-build libtool libX11-devel libXt-devel libical-devel ncurses-devel perl postgresql-devel postgresql-contrib tcl-devel tk-devel swig expat-devel openssl-devel libXext libXft autoconf automake python2 python2-devel python36 python36-devel python2-pip python3-pip lua
+
+pip2 install setuptools numpy scipy pandas wheel --upgrade
+pip3 install setuptools numpy scipy pandas wheel --upgrade
+
+cd /tmp
+
+# lua
+wget http://centos.mirror.srv.magticom.ge/8/PowerTools/x86_64/os/Packages/lua-posix-33.3.1-9.el8.x86_64.rpm
+wget http://centos.mirror.srv.magticom.ge/8/PowerTools/x86_64/os/Packages/lua-devel-5.3.4-10.el8.x86_64.rpm
+wget http://centos.mirror.srv.magticom.ge/8/PowerTools/x86_64/os/Packages/lua-filesystem-1.6.3-7.el8.x86_64.rpm
+
+rpm -ihv lua-posix-33.3.1-9.el8.x86_64.rpm
+rpm -ihv lua-devel-5.3.4-10.el8.x86_64.rpm
+rpm -ihv lua-filesystem-1.6.3-7.el8.x86_64.rpm
+
+# Lmod
+wget https://github.com/TACC/Lmod/archive/7.7.7.tar.gz
+tar xvf 7.7.7.tar.gz
+cd Lmod-7.7.7
+./configure --prefix=/opt/apps
+make install
+
+# APPS and SCRATCH
+mkdir /apps
+mkdir /scratch
+
+%environment
+source /opt/apps/lmod/7.7.7/init/profile
+clearMT
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
+export -f ml
+export -f module
+export -f clearMT
diff --git a/install/CENTOS80 b/install/CENTOS80
new file mode 100644
index 0000000000000000000000000000000000000000..f854f331b172744e65f829b790e13ccb8a30947c
--- /dev/null
+++ b/install/CENTOS80
@@ -0,0 +1,59 @@
+Bootstrap: docker
+From: centos:8
+
+%post
+yum -y update && yum -y upgrade
+
+# CentOS repo
+
+yum -y install bash-completion pigz tmux
+
+yum -y groupinstall "Development Tools"
+
+yum -y install perf perftest nano vim mc symlinks telnet net-tools ipmitool smartmontools wget openssh-ldap sssd tmux lsof strace psmisc tcsh libffi-devel libfabric time samba ksh zsh libsecret-devel libcap-devel libxslt docbook-style-xsl nfs-utils.x86_64 nfs4-acl-tools bind-utils tcl tcl-devel python2 python2-devel python36 python36-devel python2-pip python3-pip lua 
+
+#X11
+yum -y install libXdmcp libXfont2 libXxf86misc libxkbfile libXtst libX11-devel mesa-libGLU mesa-dri-drivers mesa-filesystem xkeyboard-config xorg-x11-server-utils xorg-x11-xauth xorg-x11-xinit xorg-x11-xkb-utils motif motif-devel gtk3
+
+cd /tmp
+
+# OpenMPI
+wget https://www.open-mpi.org/software/ompi/v2.1/downloads/openmpi-2.1.1.tar.gz
+tar xvf openmpi-2.1.1.tar.gz && cd openmpi-2.1.1
+./configure --prefix=/usr/local
+make -j 16
+make install
+
+# pip
+pip2 install setuptools numpy scipy pandas wheel --upgrade
+pip3 install setuptools numpy scipy pandas wheel --upgrade
+
+# lua
+wget http://centos.mirror.srv.magticom.ge/8/PowerTools/x86_64/os/Packages/lua-posix-33.3.1-9.el8.x86_64.rpm
+wget http://centos.mirror.srv.magticom.ge/8/PowerTools/x86_64/os/Packages/lua-devel-5.3.4-10.el8.x86_64.rpm
+wget http://centos.mirror.srv.magticom.ge/8/PowerTools/x86_64/os/Packages/lua-filesystem-1.6.3-7.el8.x86_64.rpm
+
+rpm -ihv lua-posix-33.3.1-9.el8.x86_64.rpm
+rpm -ihv lua-devel-5.3.4-10.el8.x86_64.rpm
+rpm -ihv lua-filesystem-1.6.3-7.el8.x86_64.rpm
+
+
+# Lmod
+wget https://github.com/TACC/Lmod/archive/7.7.7.tar.gz
+tar xvf 7.7.7.tar.gz
+cd Lmod-7.7.7
+./configure --prefix=/opt/apps
+make install
+
+# APPS and SCRATCH
+mkdir /apps
+mkdir /scratch
+
+%environment
+source /opt/apps/lmod/7.7.7/init/profile
+clearMT
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
+export -f ml
+export -f module
+export -f clearMT
+