This is a script I've written to deploy the Elastic Stack.
Can you help me improve it? Especially the parts called out with *** markings.
deploy.sh:
#!/usr/bin/env bash
sudo sysctl -w vm.max_map_count=262144
#use the elastic utility to gen certs
docker-compose -f create-certs.yml run --rm create_certs
# Start the stack initially per Elastic documentation
docker-compose up -d
#run a password gen script to make some passwords
docker exec elasticsearch /bin/bash -c "bin/elasticsearch-setup-passwords \
auto --batch \
--url https://elasticsearch:9200" | tee es_passes.txt
#sub generated kibana and es passes into .env -> *** This could be better ***
cat es_passes.txt | grep 'PASSWORD kibana' | awk '{print $4}' | xargs -I {} sed -r -i 's/(KIBANA_PASS=)\w/\1{}/gip' .env
cat es_passes.txt | grep 'PASSWORD elastic' | awk '{print $4}' | xargs -I {} sed -r -i 's/(ES_PASS=)\w/\1{}/gip' .env
#eliminate duplicate lines -> *** How can I do this better ***
awk '!seen[$0]++' .env > .env_dedup
mv .env_dedup .env
#show the contents of .env
cat .env
#restart the stack after setting the passwords
docker-compose stop
docker-compose up -d
.env:
KIBANA_PASS=some_supersecure_kibana_pass
ES_PASS=some_supersecure_elasticsearch_pass
other files:
docker-compose.ymlcreate-certs.yml
update: I have fixed the substitution lines. They now read:
cat es_passes.txt | grep 'PASSWORD kibana' | awk '{print $4}' | xargs -I {} sed -r -i 's/^KIBANA_PASS=.*$/KIBANA_PASS={}/' .env
cat es_passes.txt | grep 'PASSWORD elastic' | awk '{print $4}' | xargs -I {} sed -r -i 's/^ES_PASS=.*$/ES_PASS={}/' .env