A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."
Just run this from your Mac terminal and it'll drop you in a container with full permissions on the Moby VM. This also works for Docker for Windows for getting in Moby Linux VM (doesn't work for Windows Containers).
docker run -it --rm --privileged --pid=host justincormack/nsenter1
more info: https://github.com/justincormack/nsenter1
The steps below bootstrap an instance of airflow, configured to use the kubernetes airflow executor, working within a minikube cluster.
This guide works with the airflow 1.10 release, however will likely break or have unnecessary extra steps in future releases (based on recent changes to the k8s related files in the airflow source).
| /** | |
| * Returns a time-ordered UUID (v6). | |
| * | |
| * Tags: uuid guid uuid-generator guid-generator generator time order rfc4122 rfc-4122 | |
| */ | |
| create or replace function fn_uuid_time_ordered() returns uuid as $$ | |
| declare | |
| v_time timestamp with time zone:= null; | |
| v_secs bigint := null; |
| /** | |
| * Returns a Segment's KSUID. | |
| * | |
| * Reference implementation: https://github.com/segmentio/ksuid | |
| * Also read: https://segment.com/blog/a-brief-history-of-the-uuid/ | |
| */ | |
| create or replace function fn_ksuid() returns text as $$ | |
| declare | |
| v_time timestamp with time zone := null; | |
| v_seconds numeric := null; |
| create or replace function uuid_generate_v7() | |
| returns uuid | |
| as $$ | |
| declare | |
| unix_ts_ms bytea; | |
| uuid_bytes bytea; | |
| begin | |
| unix_ts_ms = substring(int8send(floor(extract(epoch from clock_timestamp()) * 1000)::bigint) from 3); | |
| -- use random v4 uuid as starting point (which has the same variant we need) |
