public-mirrors/NewsBlur-viq
1
0
Fork 0
mirror of https://github.com/viq/NewsBlur.git synced 2025-04-13 09:38:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Formatting

Browse source
This commit is contained in:
Samuel Clay 2024-02-25 20:02:12 -05:00
parent 22f187b616
commit e7bf664e02
1 changed files with 43 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

61
hetzner migration.md
View file

@ -1,50 +1,75 @@
# Tweet
"Time for a big server transition. I’m moving the servers from Digital Ocean to Hetzner. Every database server (postgresql, mongo, redis x 4, elasticsearch, prometheus, consul, and sentry) is making the move. I’m going to do it all at once, which means about an hour of downtime."
Migration from Digital Ocean to Hetzner, covering about 120 servers (20 db, 80 task, 20 app)
"Afterwards, you shouldn't notice anything different, although these are bare metal servers, so theoretically they should be faster and more reliable."
## Tweet
> "Time for a big server transition. I’m moving the servers from Digital Ocean to Hetzner. Every database server (postgresql, mongo, redis x 4, elasticsearch, prometheus, consul, and sentry) is making the move. I’m going to do it all at once, which means about an hour of downtime."
> "Afterwards, you shouldn't notice anything different, although these are bare metal servers, so theoretically they should be faster and more reliable."
```
make maintenance_on
make celery_stop
```
# Postgres
## Postgres
# Edit postgres/consul_service.json: db-postgres2 -> hdb-postgres-1
> Edit postgres/consul_service.json: db-postgres2 -> hdb-postgres-1
```
aps -l db-postgres2,hdb-postgres-1,hdb-postgres-2 -t consul
aps -l hdb-postgres-1 -t pg_promote
```
# Mongo
## Mongo
```
sshdo db-mongo-primary1
sudo docker exec -it mongo mongo
rs.config()
rs.reconfig()
```
# Move mongo analytics
# Edit mongo/tasks/main.yml: mongo_analytics_secondary
## Mongo analytics
> Edit mongo/tasks/main.yml: mongo_analytics_secondary
```
aps -l db-mongo-analytics2,hdb-mongo-analytics-1 -t consul
```
# Redis
## Redis
# Edit redis/tasks/main.yml: redis_secondary
> Edit redis/tasks/main.yml: redis_secondary
```
aps -l hdb-redis-user-1,hdb-redis-user-2,db-redis-user -t consul
aps -l hdb-redis-session-1,hdb-redis-session-2,db-redis-sessions -t consul
aps -l hdb-redis-story-1,hdb-redis-story-2,db-redis-story1 -t consul
aps -l hdb-redis-pubsub,db-redis-pubsub -t consul
apd -l hdb-redis-user-1,hdb-redis-session-1,hdb-redis-story-1,hdb-redis-pubsub -t replicaofnoone
```
# Elasticsearch
## Elasticsearch
# Edit elasticsearch/tasks/main.yml: elasticsearch_secondary
> Edit elasticsearch/tasks/main.yml: elasticsearch_secondary
```
aps -l db-elasticsearch1,hdb-elasticsearch-1 -t consul
# Eventually MUserSearch.remove_all()
```
> Eventually `MUserSearch.remove_all()`
# Test hwww.newsblur.com
## Test hwww.newsblur.com
```
ansible-playbook ansible/deploy.yml -l happ-web-01 --tags maintenance_off
```
# Looks good? Launch
# Haproxy on DO to redirect to Hetzner
## Looks good? Launch
> Haproxy on DO to redirect to Hetzner
```
aps -l www -t haproxy
# Change DNS to point to Hetzner
```
> Change DNS to point to Hetzner
```
make maintenance_off
```
# Setup redis replicas (replica.conf port)