[CI] Remove unused variables and logic

elasticsearch_container, elasticsearch_image vars were not being used,
so removed them. Also, cleaned up other variables which depended on them
(mostly hardcoded them instead of deriving from these removed variables)

Signed-off-by: Rushi Agrawal <rushi.agr@gmail.com>

.ci/functions/cleanup.sh

@@ -25,8 +25,8 @@ function cleanup_node {
     (docker container rm --force --volumes "$1") || true
   fi
   if [[ -n "$1" ]]; then
-    echo -e "\033[34;1mINFO:\033[0m Removing volume $1-${suffix}-data\033[0m"
-    cleanup_volume "$1-${suffix}-data"
+    echo -e "\033[34;1mINFO:\033[0m Removing volume $1-rest-test-data\033[0m"
+    cleanup_volume "$1-rest-test-data"
   fi
 }
 function cleanup_network {

.ci/functions/imports.sh

@@ -16,18 +16,11 @@ if [[ -z $es_node_name ]]; then
 
   export es_node_name=instance
   export elastic_password=changeme
-  export elasticsearch_image=opensearchproject/opensearch
-  if [[ "$CLUSTER" == "opendistro" ]]; then
-    export elasticsearch_image=amazon/opendistro-for-elasticsearch
-  fi
 
   export elasticsearch_url=$ELASTICSEARCH_URL_EXTENSION://${es_node_name}:9200
   export external_elasticsearch_url=${elasticsearch_url/$es_node_name/localhost}
-  export elasticsearch_container="${elasticsearch_image}:latest"
 
-  export suffix=rest-test
-  export moniker=$(echo "$elasticsearch_container" | tr -C "[:alnum:]" '-')
-  export network_name=${moniker}${suffix}
+  export network_name=search-rest-test
 
   export ssl_cert="${script_path}/certs/testnode.crt"
   export ssl_key="${script_path}/certs/testnode.key"

.ci/run-elasticsearch.sh

@@ -26,7 +26,7 @@ echo -e "\033[34;1mINFO:\033[0m Take down node if called twice with the same arg
 cleanup_node $es_node_name
 
 master_node_name=${es_node_name}
-cluster_name=${moniker}${suffix}
+cluster_name=search-rest-test
 
 declare -a volumes
 environment=($(cat <<-END
@@ -43,17 +43,6 @@ environment=($(cat <<-END
 END
 ))
 
-# Pull the container, retry on failures up to 5 times with
-# short delays between each attempt. Fixes most transient network errors.
-docker_pull_attempts=0
-until [ "$docker_pull_attempts" -ge 5 ]
-do
-   docker pull "$elasticsearch_container" && break
-   docker_pull_attempts=$((docker_pull_attempts+1))
-   echo "Failed to pull image, retrying in 10 seconds (retry $docker_pull_attempts/5)..."
-   sleep 10
-done
-
 NUMBER_OF_NODES=${NUMBER_OF_NODES-1}
 http_port=9200
 for (( i=0; i<$NUMBER_OF_NODES; i++, http_port++ )); do
@@ -65,7 +54,7 @@ for (( i=0; i<$NUMBER_OF_NODES; i++, http_port++ )); do
 END
 ))
   echo "$i: $http_port $node_url "
-  volume_name=${node_name}-${suffix}-data
+  volume_name=${node_name}-rest-test-data
   volumes+=($(cat <<-END
     --volume $volume_name:/usr/share/elasticsearch/data${i}
 END

.ci/run-repository.sh

@@ -4,9 +4,8 @@
 # Once called Elasticsearch is up and running and the following parameters are available to this script
 
 # ELASTICSEARCH_VERSION -- version e.g Major.Minor.Patch(-Prelease)
-# ELASTICSEARCH_CONTAINER -- the docker moniker as a reference to know which docker image distribution is used
 # ELASTICSEARCH_URL -- The url at which elasticsearch is reachable
-# NETWORK_NAME -- The docker network name
+# network_name -- The docker network name
 # NODE_NAME -- The docker container name also used as Elasticsearch node name
 
 # When run in CI the test-matrix is used to define additional variables
@@ -16,7 +15,6 @@ set -e
 
 echo -e "\033[34;1mINFO:\033[0m URL ${elasticsearch_url}\033[0m"
 echo -e "\033[34;1mINFO:\033[0m VERSION ${ELASTICSEARCH_VERSION}\033[0m"
-echo -e "\033[34;1mINFO:\033[0m CONTAINER ${ELASTICSEARCH_CONTAINER}\033[0m"
 echo -e "\033[34;1mINFO:\033[0m TEST_SUITE ${TEST_SUITE}\033[0m"
 echo -e "\033[34;1mINFO:\033[0m PYTHON_VERSION ${PYTHON_VERSION}\033[0m"
 echo -e "\033[34;1mINFO:\033[0m PYTHON_CONNECTION_CLASS ${PYTHON_CONNECTION_CLASS}\033[0m"