I am trying to bypass limit of aws userdata and s3 is only viable solution
right now. There are some issues to support IAM and s3 bucket natively so I
need to find a way as I did in cloud init. Is there a way of running some
scripts and let us to download necessary file as this:
```
---
coreos:
units:
- name: bypass-user-data-limit.service
command: start
content: |
[Unit]
Description=Update the machine using our own cloud config as AWS
user-data sucks
[Service]
EnvironmentFile=/etc/environment
ExecStartPre=/opt/bin/fetch-from-s3 ${s3-cloud-init-file}
ExecStart=/usr/bin/coreos-cloudinit --from-file
/etc/systemd/system/${s3-cloud-init-file}
RemainAfterExit=yes
Type=oneshot
write-files:
- path: /opt/bin/fetch-from-s3
permissions: 0755
owner: root:root
content: |
#!/bin/bash -e
until /usr/bin/rkt run \
--net=host \
--trust-keys-from-https \
--volume=dns,kind=host,source=/etc/resolv.conf,readOnly=true
--mount volume=dns,target=/etc/resolv.conf \
--volume=ssl,kind=host,source=/etc/systemd/system,readOnly=false
--mount=volume=ssl,target=/etc/systemd/system \
quay.io/coreos/awscli -- aws s3 cp s3://${ s3-bucket }/$1
/etc/systemd/system
do
echo "retrying"
sleep 5.2
done
echo "✓"
```
Any help?
