Adding Chapter 1 : Packer will build for you

packer/provisioning/alpine/ansible.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -xe
+
+installPython()
+{
+   apk add --no-cache python3
+   ln -sf python3 /usr/bin/python
+}
+
+installPython

packer/provisioning/alpine/cleanup.sh

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+#!/bin/sh
+
+set -xe
+
+source /root/provisioning/common.sh
+
+removePkg()
+{
+   apk del --no-cache $1
+   return $?
+}
+
+cleanProv()
+{
+   rm -rf /root/provisioning
+   return $?
+}
+
+for pkg in ${PKG_TO_REMOVE}
+do
+   removePkg ${pkg}
+   if [ $? -ne 0 ]
+   then
+      echo "Warning : removing package ${pkg} failed with code $?"
+   fi
+done
+
+cleanProv
+exit $?

packer/provisioning/alpine/configure-onecontext.sh

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+#!/usr/bin/env sh
+
+set -xeo pipefail
+
+# Install one-context
+wget https://github.com/OpenNebula/addon-context-linux/releases/download/v5.8.0/one-context-5.8.0-r1.apk
+apk add --allow-untrusted --no-cache one-context-5.8.0-r1.apk
+
+apk add --no-cache e2fsprogs-extra 
+apk add --no-cache haveged
+
+# Enable VM contextualization
+rc-update add one-context default
+rc-update add haveged boot
+
+rc-status
+
+# Add DNS hook in one-context
+mkdir -p /usr/local/share/one-context/scripts
+cat > /usr/local/share/one-context/scripts/dns-nebula <<'EOF'
+#!/bin/sh
+
+. /usr/share/one-context/scripts/utils.sh
+
+dns_servers="$(getval ETH0_DNS)"
+
+echo > /etc/resolv.conf
+for nameserver_address in $dns_servers; do
+  echo "nameserver $nameserver_address" >> /etc/resolv.conf
+done
+EOF
+chmod +x /usr/local/share/one-context/scripts/dns-nebula
+ln -s /usr/local/share/one-context/scripts/dns-nebula /etc/one-context.d/01-dns-nebula
+
+# Reset network interfaces
+cat > /etc/network/interfaces <<EOF
+auto lo
+iface lo inet loopback
+# BEGIN generated by /usr/share/one-context/scripts/network
+# Do not modify this block, any modifications will be lost after reboot!
+auto eth0
+iface eth0 inet dhcp
+# END generated
+EOF
+
+# Disable resolv.conf overwriting
+mkdir -p /etc/udhcpc
+echo 'RESOLV_CONF=NO' >> /etc/udhcpc/udhcpc.conf
+
+# Clean up
+rm -rf /root/*.apk
+
+sync

packer/provisioning/alpine/finalize.sh

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+#!/bin/sh
+
+set -x
+
+# Zeroize
+dd if=/dev/zero of=/myZeroFile
+rm -rf /myZeroFile
+sync

packer/provisioning/alpine/setup-alpine.sh

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+#!/usr/bin/env sh
+
+set -xeo pipefail
+
+setup-ntp -c chrony
+setup-apkrepos http://dl-cdn.alpinelinux.org/alpine/v3.10/main/ http://dl-cdn.alpinelinux.org/alpine/v3.10/community/
+
+apk add --no-cache wget
+apk add --no-cache expect  #util-linux coreutils
+apk add --no-cache haveged  
+apk add --no-cache ca-certificates
+
+rc-update add haveged boot
+service haveged start
+
+update-ca-certificates
+
+export DISKOPTS="-L"
+expect <<EOF
+set timeout 300
+
+spawn setup-alpine
+
+expect "Select keyboard layout**"
+send "fr\r"
+
+expect "Select variant**"
+send "fr-azerty\r"
+
+expect "Enter system hostname**"
+send "${VM_NAME}\r"
+
+expect "Which one do you want to initialize**"
+send "eth0\r"
+
+expect "Ip address for eth0**"
+send "dhcp\r"
+
+expect "Do you want to do any manual network configuration**"
+send "no\r"
+
+expect "New password:"
+send "${ROOT_PASSWORD}\r"
+
+expect "Retype password:"
+send "${ROOT_PASSWORD}\r"
+
+expect "Which timezone are you in**"
+send "Europe/Paris\r"
+
+expect "HTTP/FTP proxy URL**"
+send "none\r"
+
+expect "Enter mirror number**"
+send "done\r"
+
+expect "Which SSH server**"
+send "openssh\r"
+
+expect "Which disk*s* would you like to use**"
+send "vda\r"
+
+expect "How would you like to use it**"
+send "sys\r"
+
+expect "WARNING: Erase the above disk*s* and continue**"
+send "y\r"
+
+expect eof
+EOF
+
+# Remove expect package
+apk del --no-cache expect
+
+sync
+
+reboot

packer/provisioning/alpine/sums/alpine-virt-3.10.2-x86_64.iso.sha256

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+06eab9a4d3ce28ce31d413b78b6ff94285e432179b6a6cba711e6c6653667567  alpine-virt-3.10.2-x86_64.iso

packer/provisioning/alpine/sums/alpine-virt-3.12.0-x86_64.iso.sha256

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+fe694a34c0e2d30b9e5dea7e2c1a3892c1f14cb474b69cc5c557a52970071da5  alpine-virt-3.12.0-x86_64.iso

packer/provisioning/alpine/syslog.sh

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+#!/bin/sh
+
+set -xe
+
+source /root/provisioning/common.sh
+
+installRsyslogRelp()
+{
+   apk add --no-cache rsyslog-relp
+}
+
+installNodeExporter()
+{
+   local node_exporter_version="0.18.1"
+   local node_exporter_archive="node_exporter-${node_exporter_version}.linux-amd64.tar.gz"
+   local node_exporter_url="https://github.com/prometheus/node_exporter/releases/download/v${node_exporter_version}/${node_exporter_archive}"
+   local node_exporter_sum="b2503fd932f85f4e5baf161268854bf5d22001869b84f00fd2d1f57b51b72424"
+
+   cd /tmp
+   downloadArchive ${node_exporter_url} ${node_exporter_sum} ${node_exporter_archive} sha256sum
+   extractArchiveXZ ${node_exporter_archive} /srv/node_exporter
+   cd -
+}
+
+confSyslog() 
+{
+    SYSLOG_CONF_DIR="/etc/rsyslog.d/"
+    SYSLOG_CONF_FILE="${SYSLOG_CONF_DIR}/aggregation.conf"
+    QUEUE_DIR="/var/log/rsyslog/queues"
+
+    if [ ! -d ${SYSLOG_CONF_DIR} ]
+    then
+       mkdir ${SYSLOG_CONF_DIR}
+    fi
+    
+    if [ ! -d ${QUEUE_DIR} ]
+    then
+       mkdir -p ${QUEUE_DIR}
+    fi
+
+    echo "\$WorkDirectory ${QUEUE_DIR}" >> ${SYSLOG_CONF_FILE}
+    echo "\$ActionQueueType LinkedList" >> ${SYSLOG_CONF_FILE}
+    echo "\$ActionQueueFileName send_all" >> ${SYSLOG_CONF_FILE}
+    echo "\$ActionQueueSaveOnShutdown on" >> ${SYSLOG_CONF_FILE}
+    echo "" >> ${SYSLOG_CONF_FILE}
+    echo "*.* :omrelp:${SYSLOG_SERVER}:${SYSLOG_PORT}" >> ${SYSLOG_CONF_FILE}
+}
+
+cat /etc/resolv.conf
+
+#Not needed for ber
+#installRsyslogRelp
+#installNodeExporter
+#confSyslog