KeepUp
The problem
I'm currently playing with some raspberry. Many of them will be placed somewhere and network connected. Those devices have many apps that are in a continous developing. Sometimes I need to make some changes in those machines.
How can I keep up them?
The solution
A script launched in a cronjob who read a remote CSV table with incremental changes. Each row is a pointer to a remote script, the service download and run the script.
The status is saved in a sqlite3 db.
A single machine is consider update from the keepup install date.
How It work
Install on the device
git clone https://github.com/pnicorelli/keepup.git
cd keepup
sudo bash install.shthis will create a new user keepup with full SUDO access (like the pi user)
Then publish a CSV on REMOTE_LEDGER url with format:
TIMESTAMP,REFNAME,REFVERSION,SCRIPT_URL,SHA256,NOTES
where each field is:
- TIMESTAMP : epoch of the script generation
- REFNAME : a name for reference
- REFVERSION: a reference for versioning
- HTTP_URL : where you serve the script
- SHA256 : checksum, return value of
sha256sum yourscript.sh - NOTES : bla bla bla if needed
( -g SCRIPT_URL option output the row to be added on REMOTE_LEDGER file)
Then update REMOTE_LEDGER in /etc/keepup.cfg
Last but not least, add a cronjob who execute the keepup.
# /etc/crontab: system-wide crontab
# example to run keepup every hour
0 * * * * keepup /usr/local/bin/keepup
EXAMPLE
- REMOTE_LEDGER.csv
1509193800,"UX","0.0.1","https://gitlab.com/p.nicorelli/test/raw/master/release.sh",245edcde7db69a17a2f24fa68da93605146ec2666fd2d453c87359df116ba200,"Initial Release"
1509194011,"UX","0.0.2","https://gitlab.com/p.nicorelli/test/raw/master/release_2.sh",93023c4904b5a00f14e34ce499e363c335753c0187db75bdee7c336e541025f3,"Add file"
1509210296,"WatchDog","1.0","https://gitlab.com/p.nicorelli/test/raw/master/xex_1.sh",ef9093dcf5dedb39174fc24863420f2343cc5bda0485e25d4d9b2219abf5c301,"New Software install"