- To warm and froth milk:
Push the on button once
- blue indicator lights up
- To only warm milk:
Push the on button two time
- blue indicator lights up (not helpful)
- To only froth milk:
Push the on button three times
- the blue indicator flashes
Code Snippets
Mira Milk Frother Usage
This python script is used to increase the number of replicas in an ES cluster and force those new replicas to be allocated to a new host to enable a filesystem backup of the ES data directory.
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| from requests import get, post, put | |
| from json import dumps, loads | |
| from sys import argv | |
| from math import ceil | |
| commands = [] | |
| def addShard(idx, shard): | |
| commands.append({ | |
| "allocate" : { | |
| "index" : idx, | |
| "shard" : int(shard), | |
| "allow_primary" : False, | |
| "node" : backup_node | |
| } | |
| }) | |
| state = loads(get('http://localhost:9200/_cluster/state?filter_metadata=true').content) | |
| data_nodes = [] | |
| for node in state['nodes']: | |
| if "data" in state['nodes'][node]['attributes'] and state['nodes'][node]['attributes']['data'] == "false": | |
| continue | |
| data_nodes.append({ 'node': node, 'address': state['nodes'][node]['transport_address']}) | |
| replica_count = int(ceil(len(data_nodes)/2.0)) | |
| if len(argv) != 2: | |
| print "You must specify which node is the backup node or the 'reset' command. Available nodes right now are:" | |
| for node in data_nodes: | |
| print "\t- %s (%s)" % (node['node'], node['address']) | |
| quit() | |
| if argv[1] == "reset": | |
| put('http://localhost:9200/_settings', data='{ "index.routing.allocation.disable_allocation": false }') | |
| put('http://localhost:9200/_settings', data='{ "index" : { "number_of_replicas" : %d } }' % replica_count) | |
| quit() | |
| backup_node = argv[1] | |
| if backup_node not in state['nodes']: | |
| print "Invalid data node" | |
| quit() | |
| put('http://localhost:9200/_settings', data='{ "index.routing.allocation.disable_allocation": true }') | |
| put('http://localhost:9200/_settings', data='{ "index" : { "number_of_replicas" : %d } }' % (replica_count+1)) | |
| for idx in state['routing_table']['indices']: | |
| for shard in state['routing_table']['indices'][idx]['shards']: | |
| addShard(idx, shard) | |
| # this is a lot of output, TODO: consolidate this into just what's useful | |
| print dumps(loads(post('http://localhost:9200/_cluster/reroute?pretty', data=dumps({ "commands": commands })).content), indent=4) | |
When you need to jump start a material-ui project with the pre-hooks version of react. (react v16.7, material-ui v3.7.1)
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| curl https://codeload.github.com/mui-org/material-ui/tar.gz/v3.7.1 | tar -xz --strip=2 material-ui-3.7.1/examples/create-react-app |
Print the dates from an SSL certificate
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| openssl x509 -noout -dates -in cert.pem |
This one command is so hard to track down every 3 years when I need it. So many posts incorrectly insist the private key is in PEM format already. In truth, it depends on how the key pair was created (openssl vs ssh-keygen).
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| # NOTE: this updates the file in place, do you have a backup? | |
| ssh-keygen -p -m PEM -f ~/.ssh/id_rsa |