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Improve how node roles are assigned in Garage

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- change the terminology: the network configuration becomes the role
  table, the configuration of a nodes becomes a node's role
- the modification of the role table takes place in two steps: first,
  changes are staged in a CRDT data structure. Then, once the user is
  happy with the changes, they can commit them all at once (or revert
  them).
- update documentation
- fix tests
- implement smarter partition assignation algorithm

This patch breaks the format of the network configuration: when
migrating, the cluster will be in a state where no roles are assigned.
All roles must be re-assigned and commited at once. This migration
should not pose an issue.
This commit is contained in:
Alex Auvolat
2021-11-09 12:24:04 +01:00
parent 53888995bd
commit c94406f428
42 changed files with 1430 additions and 557 deletions
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script/dev-cluster.sh
+1 -1
View File
@@ -69,7 +69,7 @@ done
sleep 3
# Establish connections between nodes
for count in $(seq 1 3); do
NODE=$(garage -c /tmp/config.$count.toml node-id -q)
NODE=$(garage -c /tmp/config.$count.toml node id -q)
for count2 in $(seq 1 3); do
garage -c /tmp/config.$count2.toml node connect $NODE
done
script/dev-configure.sh
+2 -1
View File
@@ -25,6 +25,7 @@ garage -c /tmp/config.1.toml status \
| grep 'NO ROLE' \
| grep -Po '^[0-9a-f]+' \
| while read id; do
garage -c /tmp/config.1.toml node configure -z dc1 -c 1 $id
garage -c /tmp/config.1.toml layout assign $id -z dc1 -c 1
done
garage -c /tmp/config.1.toml layout apply --version 1
script/test-smoke.sh
+3 -3
View File
@@ -116,11 +116,11 @@ if [ -z "$SKIP_AWS" ]; then
echo "🧪 Website Testing"
echo "<h1>hello world</h1>" > /tmp/garage-index.html
aws s3 cp /tmp/garage-index.html s3://eprouvette/index.html
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3923/ ` == 404 ]
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3921/ ` == 404 ]
garage -c /tmp/config.1.toml bucket website --allow eprouvette
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3923/ ` == 200 ]
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3921/ ` == 200 ]
garage -c /tmp/config.1.toml bucket website --deny eprouvette
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3923/ ` == 404 ]
[ `curl -s -o /dev/null -w "%{http_code}" --header "Host: eprouvette.garage.tld" http://127.0.0.1:3921/ ` == 404 ]
aws s3 rm s3://eprouvette/index.html
rm /tmp/garage-index.html
fi