Add CentOS (#12)

* Add CentOS 7

* Fix rawhide boot

* Test locale versions

http/centos/7-x86_64.ks

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+install
+text
+reboot
+url --url=http://mirror.centos.org/centos/7/os/x86_64/
+repo --name=updates --baseurl=http://mirror.centos.org/centos/7/updates/x86_64/
+lang en_US.UTF-8
+keyboard us
+timezone --utc Etc/UTC
+rootpw --plaintext vagrant
+user --name=vagrant --groups=vagrant --password=vagrant --plaintext
+zerombr
+clearpart --all --initlabel
+autopart --type=plain
+bootloader --timeout=1
+
+%packages
+@core
+which
+libselinux-python
+# mandatory packages in the @core group
+-btrfs-progs
+-iprutils
+-kexec-tools
+-plymouth
+# default packages in the @core group
+-*-firmware
+-dracut-config-rescue
+-kernel-tools
+-libsysfs
+-microcode_ctl
+-NetworkManager*
+-postfix
+-rdma
+%end
+
+%post --erroronfail
+yum -y update
+
+cat <<EOF > /etc/sudoers.d/vagrant
+Defaults:vagrant !requiretty
+vagrant ALL=(ALL) NOPASSWD: ALL
+EOF
+chmod 440 /etc/sudoers.d/vagrant
+
+ln -s /dev/null /etc/udev/rules.d/80-net-name-slot.rules
+cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
+DEVICE="eth0"
+BOOTPROTO="dhcp"
+ONBOOT="yes"
+TYPE="Ethernet"
+EOF
+%end

http/centos/8stream/x86_64.ks

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+url --mirrorlist=http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=BaseOS&infra=stock
+repo --name=AppStream --mirrorlist=http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=AppStream&infra=stock
+
+%include /tmp/packer_ks/centos-upstream/CentOS-8-Stream-x86_64-Vagrant.ks
+
+%pre --interpreter /bin/bash --log /tmp/greg
+# This gets us the upstream kickstarter files
+cmdline=$(cat /proc/cmdline)
+ks=$(printf "${cmdline}" | sed -E -e 's/.*inst\.ks=([^ ]*).*/\1/')
+mkdir -p /tmp/packer_ks
+cd /tmp/packer_ks
+# 3 levels up!
+wget -m -nH "$(dirname "$(dirname "$(dirname "${ks}")")")"
+
+# This allows us to support virtualbox
+if [ ! -e /dev/vda ]; then
+  sed -i -e 's/drives=vda/drives=sda/' -e 's/ondisk=vda/ondisk=sda/' -e 's/shutdown/reboot/' /tmp/packer_ks/centos-upstream/*
+fi
+%end

http/centos/9stream-x86_64.ks

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+url --mirrorlist=http://mirrorlist.centos.org/?release=9-stream&arch=x86_64&repo=BaseOS&infra=stock
+repo --name=AppStream --mirrorlist=http://mirrorlist.centos.org/?release=9-stream&arch=x86_64&repo=AppStream&infra=stock
+
+%include /tmp/packer_ks/centos-stream/CentOS-9-Stream-x86_64-Vagrant.ks
+
+%pre --interpreter /bin/bash --log /tmp/greg
+# This gets us the upstream kickstarter files
+cmdline=$(cat /proc/cmdline)
+ks=$(printf "${cmdline}" | sed -E -e 's/.*inst\.ks=([^ ]*).*/\1/')
+mkdir -p /tmp/packer_ks
+cd /tmp/packer_ks
+# 3 levels up!
+wget -m -nH "$(dirname "$(dirname "${ks}")")"
+
+# This allows us to support virtualbox
+if [ ! -e /dev/vda ]; then
+  sed -i -e 's/drives=vda/drives=sda/' -e 's/ondisk=vda/ondisk=sda/' -e 's/shutdown/reboot/' /tmp/packer_ks/centos-stream/*
+fi
+%end