Upgrade Node to v14

.circleci/config.yml

@@ -3,10 +3,10 @@
 
 references:
 
-  container_config_node8: &container_config_node8
+  container_config_node14: &container_config_node14
     working_directory: ~/project/build
     docker:
-      - image: circleci/node:8-browsers
+      - image: circleci/node:14-browsers
 
   workspace_root: &workspace_root
     ~/project
@@ -55,7 +55,7 @@ version: 2
 jobs:
 
   build:
-    <<: *container_config_node8
+    <<: *container_config_node14
     steps:
       - checkout
       - run:
@@ -85,7 +85,7 @@ jobs:
             - build
 
   test:
-    <<: *container_config_node8
+    <<: *container_config_node14
     steps:
       - *attach_workspace
       - run:
@@ -101,7 +101,7 @@ jobs:
           destination: test-results
 
   publish:
-    <<: *container_config_node8
+    <<: *container_config_node14
     steps:
       - *attach_workspace
       - run:

.nvmrc

@@ -0,0 +1 @@
+14.11

README.md

@@ -4,7 +4,7 @@ A useful CLI for working with Next's Elasticsearch clusters. Includes tools to s
 
 ## Prerequisites
 
-- Node 8.11+
+- Node version defined by `engines.node` in `package.json`. Run command `nvm use` to switch your local Node version to the one specified in `.nvmrc`.
 - [Vault CLI](https://github.com/Financial-Times/vault/wiki/Getting-Started#login-with-the-cli) (optional, see notes below)
 
 ## Installation and setup
@@ -184,4 +184,4 @@ Rotating AWS keys means that eventually the `access_key` stored at `~/.n-es-tool
 <TASK> failed: Authorization Exception :: {"path":"/content/item/_search","query":{"sort":"_doc","scroll":"1m","size":5000,"_source":"false"},"statusCode":403,"response":"{\"message\":\"The security token included in the request is invalid.\"}"}
 ```
 
-Reinstalling `n-es-tools` will pull in the current `access_key` and should address this issue.
+Reinstalling `n-es-tools` will pull in the current `access_key` and should address this issue.

package.json

@@ -31,6 +31,6 @@
     "standard": "^12.0.1"
   },
   "engines": {
-    "node": ">=8.11.0"
+    "node": "14.x"
   }
 }