write-admin-file() {
[[ -f ~/admin-openrc.sh ]] && rm ~/admin-openrc.sh
export NO_WRITE_RC=false
#Clear Openstack variables
for var in $(set -o posix; set|/bin/grep -oE '^OS_[^=]+');do unset ${var};done
#Assuming Keystone API 3
unset OS_TENANT_ID
unset OS_TENANT_NAME
export OS_INTERFACE=public
export OS_IDENTITY_API_VERSION=3
printf "\e[2GFetching IP for Keystone\n"
[[ $(juju config keystone vip) ]] && export OS_AUTH_URL="http://$(juju config keystone vip):5000/v3" || export OS_AUTH_URL="http://$(juju run --unit keystone/0 'unit-get public-address'):5000/v3"
export OS_PROJECT_NAME=$(juju 2>/dev/null config keystone admin-user)
export OS_USER_DOMAIN_NAME="$(juju 2>/dev/null config keystone admin-user)_domain"
printf "\e[2GFetching default admin-user name from Juju\n"
export OS_USERNAME=$(juju 2>/dev/null config keystone admin-user)
printf "\e[2GFetching password for ${OS_USERNAME} from Juju\n"
export OS_PASSWORD=$(juju 2>/dev/null config keystone admin-password)
printf "\e[2GFetching Openstack Region name from Juju\n"
export OS_REGION_NAME=$(juju 2>/dev/null config keystone region)
printf "\e[2GFetching Domain ID for ${OS_USERNAME}_domain from Juju\n"
export OS_PROJECT_DOMAIN_ID=$(openstack domain list --os-project-domain-name ${OS_USER_DOMAIN_NAME} --os-username ${OS_USERNAME} --os-password=${OS_PASSWORD}|awk '/'${OS_USER_DOMAIN_NAME}'/{print $2}')
printf "\e[2GFetching Project ID for ${OS_USERNAME} project from Juju\n"
export OS_PROJECT_ID=$(openstack project list --long --os-project-domain-name ${OS_USER_DOMAIN_NAME} --os-username ${OS_USERNAME} --os-password=${OS_PASSWORD}|awk '/'${OS_PROJECT_DOMAIN_ID}'/&&/'${OS_USERNAME}'/{print $2}')

#Check to make sure we have populated variables
printf "\e[2GValidating that all OS_ variables are present\n"
for var in $(set -o posix; set|/bin/grep -oE '^OS_[^=]+');do
if [[ -z $(eval "echo \$$var") ]];then
export NO_WRITE_RC=true
printf "\e[4GCannot determine value for $var\n"
fi
done

#Write the RC File
if [[ ${NO_WRITE_RC} = false ]];then
printf "\e[2GCreating Openstack RC file...\n"
{ set|/bin/grep -oE '^OS_[^$]+'|sed 's/^.*$/export &/g;1s/^/#!\/usr\/bin\/env bash\n/;/HYPERVISORS/d'|tee 1>/dev/null ~/admin-openrc.sh; }
[[ $? -eq 0 && -f ~/admin-openrc.sh ]] && { printf "\e[4GSourcing Openstack RC file...\n";source ~/admin-openrc.sh; }
RC_FILE_SOURCED=true
else
printf "\e[2GCould not write the RC file.  Please ensure you are both the user and on the system where Juju deployed Openstack from.\n\n"
RC_FILE_SOURCED=false
return 1
fi
}