So, I had a good friend of mine who is a cloud Mentor at Rackspace, reach out to me concerning an easier way of deploying cloud-images, without each time a cloud server is spun up, having to unroll the image into a CBS. His customer wanted to simply have a ‘primary master’ CBS volume, a template of their site if you will, the equivalent of a ‘golden image’, the only difference was it was a CBS Volume. So I set about making this work. It would still take a few hours, at least to provision 50 to 200 servers, but it was much faster than the alternatives. Here is how I did it. I actually have some ideas for how to improve this but I’ve not yet implemented it. That goody is to come in later scripts.<\/p>\n
\r\n#!\/bin\/bash\r\n\r\nUSERNAME='mycloudusername'\r\nAPIKEY='mycloudapikey'\r\nACCOUNT_NUMBER=100101011\r\nAPI_ENDPOINT=\"https:\/\/lon.blockstorage.api.rackspacecloud.com\/v1\/$ACCOUNT_NUMBER\/volumes\"\r\nMASTER_CBS_VOL_ID=\"d8a67ad1-8037-46bc-8790-efca2cb6e5bd\"\r\n\r\n\r\nTOKEN=`curl https:\/\/identity.api.rackspacecloud.com\/v2.0\/tokens -X POST -d '{ \"auth\":{\"RAX-KSKEY:apiKeyCredentials\": { \"username\":\"'$USERNAME'\", \"apiKey\": \"'$APIKEY'\" }} }' -H \"Content-type: application\/json\" | python -mjson.tool | grep -A5 token | grep id | cut -d '\"' -f4`\r\n\r\n\r\n# Populate CBS\r\nfor i in `seq 1 2`;\r\ndo\r\n\r\necho \"Generating CBS Clone #$i\"\r\n#curl -s -vvvv \\\r\n-X POST \"$API_ENDPOINT\" \\\r\n-H \"X-Auth-Token: $TOKEN\" \\\r\n-H \"X-Project-Id: $ACCOUNT_NUMBER\" \\\r\n-H \"Accept: application\/json\" \\\r\n-H \"Content-Type: application\/json\" -d '{\"volume\": {\"source_volid\": \"d8a67ad1-8037-46bc-8790-efca2cb6e5bd\", \"size\": 50, \"display_name\": \"win-'$i'\", \"volume_type\": \"SSD\"}}' | jq .volume.id | tr -d '\"' >> cbs.created\r\n\r\ndone\r\n\r\necho \"Giving CBS 2 hour grace time for 50 CBS clone\"\r\n#sleep 7200\r\n\r\necho \"Listing all CBS Volume ID's created\"\r\ncat cbs.created\r\necho \"\"\r\n\r\n\r\n# Populate Nova\r\ncount=1;\r\necho \"Populating Nova servers with CBS disk\"\r\nwhile read n; do\r\nEcho \"Build Task $n Started:\"\r\nnova --insecure --os-username mycloudusername --os-auth-system=rackspace --os-tenant-name 100110111 --os-auth-url https:\/\/lon.identity.api.rackspacecloud.com\/v2.0\/ --os-password myapikeygoeshere boot --flavor general1-1 --block-device-mapping vda=\"$n\":::1 Auto-win-\"$count\"\r\n((count=count+1))\r\n\r\ndone < cbs.created\r\n\r\n# Move the cbs.created.old away\r\nmv cbs.created cbs.created.old -f\r\n\r\n<\/pre>\nRequirements are nova and jq.
\nhttps:\/\/stedolan.github.io\/jq\/
\nhttps:\/\/developer.rackspace.com\/blog\/getting-started-using-python-novaclient-to-manage-cloud-servers\/<\/p>\n","protected":false},"excerpt":{"rendered":"
So, I had a good friend of mine who is a cloud Mentor at Rackspace, reach out to me concerning an easier way of deploying cloud-images, without each time a cloud server is spun up, having to unroll the image … Continue reading