Imagebuilder incorrectly maps to fstab due to single quotes not interpolating bash associative array

[youanden]

After a successful imagebuilder AMI is started, fstab reads:

LABEL=cloudimg-rootfs   /        ext4   defaults,discard        0 1
LABEL=UEFI      /boot/efi       vfat    umask=0077      0 1
${parameter["EFS_DNS_TARGET"]}:/data/var ${parameter["WEB_ROOT_PATH"]}/var nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,_netdev 0 0
${parameter["EFS_DNS_TARGET"]}:/data/pub/media ${parameter["WEB_ROOT_PATH"]}/pub/media nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,_netdev 0 0

The imagebuilder must use double quotes to force variable interpolation like so:

echo "${parameter["EFS_DNS_TARGET"]}:/data/var ${parameter["WEB_ROOT_PATH"]}/var nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,_netdev 0 0" >> /etc/fstab
echo "${parameter["EFS_DNS_TARGET"]}:/data/pub/media ${parameter["WEB_ROOT_PATH"]}/pub/media nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,_netdev 0 0" >> /etc/fstab

[magenx]

this issue is fixed now