diff --git a/.nvmrc b/.nvmrc
index f599e28..5b7269c 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-10
+10.19.0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5501dd..317b759 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,15 @@
 ### Master
+* ...
+
+### 2.3.4
 * monorepo: pin monorepo, scaffolder and project to node 10
-* CI: execute lint/build/test for generated create-aaa-backend project al the time
+* CI: execute lint/build/test for generated create-aaa-backend project all the time
+* storage: db connection pool defaults (min=1, max=cpu_cores*2, idle=10000ms) and allow to specify via `pgConnection.pool`.
+  * Furhermore allows to specify pool size via `SEQ_POOL_MIN`, `SEQ_POOL_MAX` and `SEQ_POOL_IDLE` env vars.
+* ansible provision fixes
+
+### 2.3.0-2.3.3
+* bad builds, ignore.
 
 ### 2.2.5
 * Update dependencies with high vulnerabilities
diff --git a/README.md b/README.md
index 9a16b3a..9de3487 100644
--- a/README.md
+++ b/README.md
@@ -134,8 +134,8 @@ local$ git commit -m "merge latest"
 local$ git tag 1.16.1
 
 # 3. Push to github
-local$ git push origin-github
-local$ git push origin-github 1.16.1
+local$ git push origin-github
+local$ git push origin-github 1.16.1
 ```
 
 ### I want to add a dependency
diff --git a/lerna.json b/lerna.json
index 14cceb4..f942160 100644
--- a/lerna.json
+++ b/lerna.json
@@ -6,5 +6,5 @@
   "hoist": true,
   "npmClient": "yarn",
   "useWorkspaces": true,
-  "version": "2.2.5"
+  "version": "2.3.4"
 }
diff --git a/packages/aaa-build-tools/package.json b/packages/aaa-build-tools/package.json
index ff2b5e6..e558b14 100644
--- a/packages/aaa-build-tools/package.json
+++ b/packages/aaa-build-tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/build-tools",
-  "version": "2.2.0",
+  "version": "2.3.4",
   "description": "base tools for env sourcing and building cli tools",
   "license": "MIT",
   "author": "all about apps",
@@ -42,7 +42,7 @@
     "sort-package-json": "1.7.1"
   },
   "devDependencies": {
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-devtools/package.json b/packages/aaa-devtools/package.json
index 0418741..7ef46e3 100644
--- a/packages/aaa-devtools/package.json
+++ b/packages/aaa-devtools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/devtools",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Websocket devtools which integrates with aaa logger (pipes logs from stdout)",
   "license": "MIT",
   "author": "all about apps",
@@ -16,8 +16,8 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/git-info": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/git-info": "^2.3.4",
     "@types/lodash": "4.14.144",
     "@types/ws": "3.2.1",
     "bufferutil": "4.0.1",
@@ -26,8 +26,8 @@
     "ws": "3.3.3"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-example-lib/package.json b/packages/aaa-example-lib/package.json
index c96eb7d..d0865a1 100644
--- a/packages/aaa-example-lib/package.json
+++ b/packages/aaa-example-lib/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/example-lib",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "private": true,
   "description": "Example Lib",
   "license": "MIT",
@@ -17,12 +17,12 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/utils": "^2.2.4"
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-file-storage-local/package.json b/packages/aaa-file-storage-local/package.json
index 19cd7fa..5edab76 100644
--- a/packages/aaa-file-storage-local/package.json
+++ b/packages/aaa-file-storage-local/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/file-storage-local",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "File storage service implementation using local file system",
   "license": "MIT",
   "author": "all about apps",
@@ -16,18 +16,18 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/file-storage": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/file-storage": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/lodash": "4.14.144",
     "@types/url-join": "0.8.2",
     "lodash": "4.17.15",
     "url-join": "4.0.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-file-storage-s3/package.json b/packages/aaa-file-storage-s3/package.json
index 6c11c68..5fbee6e 100644
--- a/packages/aaa-file-storage-s3/package.json
+++ b/packages/aaa-file-storage-s3/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/file-storage-s3",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "File storage service implementation using Amazon S3 buckets (or compatible servers)",
   "license": "MIT",
   "author": "all about apps",
@@ -16,10 +16,10 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/file-storage": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/file-storage": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/lodash": "4.14.144",
     "@types/url-join": "0.8.2",
     "aws-sdk": "2.311.0",
@@ -27,8 +27,8 @@
     "url-join": "4.0.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-file-storage/package.json b/packages/aaa-file-storage/package.json
index 8e935d8..0e01bfe 100644
--- a/packages/aaa-file-storage/package.json
+++ b/packages/aaa-file-storage/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/file-storage",
-  "version": "2.2.0",
+  "version": "2.3.4",
   "description": "High level API for a file storage service, actual implementation provided in separate packages",
   "license": "MIT",
   "author": "all about apps",
@@ -16,10 +16,10 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0"
+    "@aaa-backend-stack/build-tools": "^2.3.4"
   },
   "devDependencies": {
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-git-info/package.json b/packages/aaa-git-info/package.json
index 7e3f2a0..4a93d22 100644
--- a/packages/aaa-git-info/package.json
+++ b/packages/aaa-git-info/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/git-info",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Reads base directory to get current git commit information",
   "license": "MIT",
   "author": "all about apps",
@@ -16,12 +16,12 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
     "git-rev-sync": "1.9.1"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-graphql-rest-bindings/package.json b/packages/aaa-graphql-rest-bindings/package.json
index ed84a32..3163c6d 100644
--- a/packages/aaa-graphql-rest-bindings/package.json
+++ b/packages/aaa-graphql-rest-bindings/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/graphql-rest-bindings",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Provides utils for graphql introspection and devtools in combination with rest layer",
   "license": "MIT",
   "author": "all about apps",
@@ -16,11 +16,11 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/graphql": "^2.2.4",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/rest": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/graphql": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/rest": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/bluebird": "3.5.8",
     "@types/bluebird-global": "3.5.3",
     "@types/lodash": "4.14.144",
@@ -30,8 +30,8 @@
     "lodash": "4.17.15"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-graphql/package.json b/packages/aaa-graphql/package.json
index 920f182..3f39d9d 100644
--- a/packages/aaa-graphql/package.json
+++ b/packages/aaa-graphql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/graphql",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "GraphQL Layer",
   "license": "MIT",
   "author": "all about apps",
@@ -19,9 +19,9 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/bluebird": "3.5.8",
     "@types/bluebird-global": "3.5.3",
     "@types/graphql": "0.9.4",
@@ -41,8 +41,8 @@
     "sequelize": "3.31.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-image-service/package.json b/packages/aaa-image-service/package.json
index 08820c3..570ebdf 100644
--- a/packages/aaa-image-service/package.json
+++ b/packages/aaa-image-service/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/image-service",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Image service for handling image uploads",
   "license": "MIT",
   "author": "all about apps",
@@ -16,12 +16,12 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/file-storage": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/rest": "^2.2.4",
-    "@aaa-backend-stack/storage": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/file-storage": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/rest": "^2.3.4",
+    "@aaa-backend-stack/storage": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/gm": "1.18.0",
     "@types/lodash": "4.14.144",
     "command-exists": "1.2.7",
@@ -29,8 +29,8 @@
     "lodash": "4.17.15"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-logger/package.json b/packages/aaa-logger/package.json
index 046e0e4..6df5a79 100644
--- a/packages/aaa-logger/package.json
+++ b/packages/aaa-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/logger",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Bunyan logger interface implementation, hapi plugin, file rotation and email error reporting setup",
   "license": "MIT",
   "author": "all about apps",
@@ -19,9 +19,9 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/git-info": "^2.2.4",
-    "@aaa-backend-stack/serverdate": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/git-info": "^2.3.4",
+    "@aaa-backend-stack/serverdate": "^2.3.4",
     "@types/bunyan": "0.0.30",
     "@types/lodash": "4.14.144",
     "@types/nodemailer": "6.2.1",
@@ -35,8 +35,8 @@
     "safe-json-stringify": "1.1.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-mailer/package.json b/packages/aaa-mailer/package.json
index 2b580c8..b1fb054 100644
--- a/packages/aaa-mailer/package.json
+++ b/packages/aaa-mailer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/mailer",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Example Lib",
   "license": "MIT",
   "author": "all about apps",
@@ -16,9 +16,9 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/lodash": "4.14.144",
     "@types/nodemailer": "6.2.1",
     "handlebars": "4.3.0",
@@ -29,8 +29,8 @@
     "nodemailer-stub-transport": "1.1.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-polyfills/package.json b/packages/aaa-polyfills/package.json
index 409101b..4db7278 100644
--- a/packages/aaa-polyfills/package.json
+++ b/packages/aaa-polyfills/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/polyfills",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Unified core and polyfills injector for backend projects. This project explicitly maintains the cls patched sequelize, bluebird, fetch",
   "license": "MIT",
   "author": "all about apps",
@@ -16,7 +16,7 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
     "@types/bluebird": "3.5.8",
     "@types/bluebird-global": "3.5.3",
     "@types/lodash": "4.14.144",
@@ -34,8 +34,8 @@
     "uuid": "3.1.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-pushes/package.json b/packages/aaa-pushes/package.json
index d6fa413..bffd1be 100644
--- a/packages/aaa-pushes/package.json
+++ b/packages/aaa-pushes/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/pushes",
-  "version": "2.2.5",
+  "version": "2.3.4",
   "description": "Push notification lib",
   "license": "MIT",
   "author": "all about apps",
@@ -16,10 +16,10 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/serverdate": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/serverdate": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/lodash": "4.14.144",
     "@types/node-fetch": "1.6.7",
     "apn": "2.2.0",
@@ -29,8 +29,8 @@
     "node-fetch": "1.7.2"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-rest/package.json b/packages/aaa-rest/package.json
index d994080..c6cb529 100644
--- a/packages/aaa-rest/package.json
+++ b/packages/aaa-rest/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/rest",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Example Lib",
   "license": "MIT",
   "author": "all about apps",
@@ -16,9 +16,9 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/boom": "0.0.33",
     "@types/hapi": "16.1.6",
     "@types/hapi-decorators": "0.4.5",
@@ -39,8 +39,8 @@
     "vision": "4.1.1"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-serverdate/package.json b/packages/aaa-serverdate/package.json
index 4ea64d7..94ecde0 100644
--- a/packages/aaa-serverdate/package.json
+++ b/packages/aaa-serverdate/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/serverdate",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Utility functions to work with date critical server operations",
   "license": "MIT",
   "author": "all about apps",
@@ -16,7 +16,7 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
     "@types/lodash": "4.14.144",
     "@types/moment-timezone": "0.5.12",
     "lodash": "4.17.15",
@@ -25,8 +25,8 @@
     "receptacle": "1.3.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-storage/package.json b/packages/aaa-storage/package.json
index 9b0b5de..c7f6388 100644
--- a/packages/aaa-storage/package.json
+++ b/packages/aaa-storage/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/storage",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Storage Package Abstraction",
   "license": "MIT",
   "author": "all about apps",
@@ -16,9 +16,9 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/bluebird": "3.5.8",
     "@types/bluebird-global": "3.5.3",
     "@types/bluebird-retry": "0.0.33",
@@ -40,8 +40,8 @@
     "uuid": "3.1.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-storage/src/adapters/ConnectionAdapter.ts b/packages/aaa-storage/src/adapters/ConnectionAdapter.ts
index c4517cc..d66a052 100644
--- a/packages/aaa-storage/src/adapters/ConnectionAdapter.ts
+++ b/packages/aaa-storage/src/adapters/ConnectionAdapter.ts
@@ -6,6 +6,7 @@ import * as _ from "lodash";
 import * as Sequelize from "sequelize";
 import dataloader, { resetCache as dataloaderResetCache } from "dataloader-sequelize";
 import * as bluebirdRetry from "bluebird-retry";
+import * as os from "os";
 const pg = require("pg").native;
 
 // Settings
@@ -18,8 +19,29 @@ export interface IPGConnectionOptions {
     password: string;
     database: string;
     timezone: string;
+    pool?: Partial<IPGConnectionPoolOptions>;
 }
 
+export interface IPGConnectionPoolOptions {
+    max: number;
+    min: number;
+    idle: number;
+    handleDisconnects: boolean;
+}
+
+const PG_CONNECTION_SEQ_POOL_DEFAULTS = {
+    max: process.env.SEQ_POOL_MAX
+        ? parseInt(process.env.SEQ_POOL_MAX, 10)
+        : os.cpus().length * 2, // cpu_cores * 2 is the default max for database connections
+    min: process.env.SEQ_POOL_MIN
+        ? parseInt(process.env.SEQ_POOL_MIN, 10)
+        : 1, // we try to keep at least one connection open all time
+    idle: process.env.SEQ_POOL_IDLE
+        ? parseInt(process.env.SEQ_POOL_IDLE, 10)
+        : 60000,
+    handleDisconnects: true
+};
+
 export interface IConnectionAdapterConfig {
     pgConnection: IPGConnectionOptions;
 }
@@ -73,7 +95,14 @@ export class ConnectionAdapter<TConfig extends IConnectionAdapterConfig> {
             throw new Error("ConnectionAdapter: tried to reset config while sequelize is still initialized.");
         }
 
-        this._CONFIG = config;
+        this._CONFIG = _.defaultsDeep(config, {
+            pgConnection: {
+                pool: {
+                    ...PG_CONNECTION_SEQ_POOL_DEFAULTS,
+                    ...(config.pgConnection.pool ? config.pgConnection.pool : {})
+                }
+            }
+        });
     }
 
     public get CONFIG(): TConfig {
@@ -378,7 +407,8 @@ export class ConnectionAdapter<TConfig extends IConnectionAdapterConfig> {
                     attempt,
                     database,
                     host: restPGConfig.host,
-                    port: restPGConfig.port
+                    port: restPGConfig.port,
+                    pool: restPGConfig.pool
                 }, "ConnectionAdapter.initConnectionAdapter: attempting to initialize sequelize...");
 
                 try {
@@ -387,10 +417,10 @@ export class ConnectionAdapter<TConfig extends IConnectionAdapterConfig> {
                             logger.trace(query);
                         }
                     }, {
-                        ...restPGConfig,
-                        dialect: "postgres",
-                        native: true,
-                    }));
+                            ...restPGConfig,
+                            dialect: "postgres",
+                            native: true,
+                        }));
 
                     logger.debug({
                         ...CONNECTION_RETRY_CONFIG,
@@ -407,7 +437,8 @@ export class ConnectionAdapter<TConfig extends IConnectionAdapterConfig> {
                         attempt,
                         database,
                         host: restPGConfig.host,
-                        port: restPGConfig.port
+                        port: restPGConfig.port,
+                        pool: restPGConfig.pool
                     }, "ConnectionAdapter.initConnectionAdapter: initialized & authenticated");
 
                     return seq;
diff --git a/packages/aaa-test-environment/package.json b/packages/aaa-test-environment/package.json
index f382e51..40dc587 100644
--- a/packages/aaa-test-environment/package.json
+++ b/packages/aaa-test-environment/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/test-environment",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Test environment (encapsulates mocha test stack)",
   "license": "MIT",
   "author": "all about apps",
@@ -19,7 +19,7 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
     "@types/chai": "3.5.2",
     "@types/chai-as-promised": "0.0.29",
     "@types/chai-http": "0.0.29",
@@ -36,7 +36,7 @@
     "traverse": "0.6.6"
   },
   "devDependencies": {
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/aaa-utils/package.json b/packages/aaa-utils/package.json
index 71dfab7..d8f8bf8 100644
--- a/packages/aaa-utils/package.json
+++ b/packages/aaa-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/utils",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "Utility belt for aaa backend projects",
   "license": "MIT",
   "author": "all about apps",
@@ -16,8 +16,8 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/logger": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
     "@types/bluebird": "3.5.8",
     "@types/bluebird-global": "3.5.3",
     "@types/bluebird-retry": "0.0.33",
@@ -35,8 +35,8 @@
     "zxcvbn": "4.4.2"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/create-aaa-backend/package.json b/packages/create-aaa-backend/package.json
index 63e8bc0..6ecebe9 100644
--- a/packages/create-aaa-backend/package.json
+++ b/packages/create-aaa-backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "create-aaa-backend",
-  "version": "2.2.4",
+  "version": "2.3.4",
   "description": "create-aaa-backend global cli. Used for scaffolding new aaa backend projects",
   "license": "MIT",
   "author": "all about apps",
@@ -20,9 +20,9 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/polyfills": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/polyfills": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/inquirer": "0.0.35",
     "@types/lodash": "4.14.144",
     "generate-password": "1.3.0",
@@ -33,7 +33,7 @@
     "uuid": "3.1.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "@types/uuid": "3.4.5",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
diff --git a/packages/template/.cabgen/docker-helper.sh.cabgen b/packages/template/.cabgen/docker-helper.sh.cabgen
index bf04d1f..a009de6 100644
--- a/packages/template/.cabgen/docker-helper.sh.cabgen
+++ b/packages/template/.cabgen/docker-helper.sh.cabgen
@@ -1,19 +1,19 @@
 #!/bin/bash
 
-if [ $1 = "--up" ]; then
+if [ "$1" = "--up" ]; then
     # --rm removes container after exit
     # --service-ports maps ports to outside when using run
     docker-compose run --rm --service-ports service bash
 fi
 
-if [ $1 = "--halt" ]; then
+if [ "$1" = "--halt" ]; then
     echo
     echo "Stopping db container ..."
     docker stop <%= CAB_PROJECT_NAME %>_postgres
     echo
 fi
 
-if [ $1 = "--destroy" ]; then
+if [ "$1" = "--destroy" ]; then
     echo
     echo "Stopping db container ..."
     docker stop <%= CAB_PROJECT_NAME %>_postgres
diff --git a/packages/template/ansible/provision.yaml b/packages/template/ansible/provision.yaml
index 4810b1c..e263159 100644
--- a/packages/template/ansible/provision.yaml
+++ b/packages/template/ansible/provision.yaml
@@ -33,7 +33,7 @@
     register: pg_repo
 
   - name: Setup PostgreSQL yum repository
-    yum: name=https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7-x86_64/pgdg-centos11-11-2.noarch.rpm state=present
+    yum: name=https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm state=present
     when: not pg_repo.stat.exists
 
   # Install Packages
@@ -75,8 +75,13 @@
       gpgkey: https://dl.yarnpkg.com/rpm/pubkey.gpg
       gpgcheck: yes
 
+
+  # eventually you need to use a specific version of yarn
+  # yum --showduplicate list yarn
+  # sudo yum remove yarn
+  # sudo yum install yarn-1.19.2-1.noarch
   - name: Install Yarn
-    yum: name=yarn state=present
+    yum: name=yarn-1.19.2-1.noarch state=present
 
   # Install global NodeJS modules
   - name: Install required global node modules
@@ -90,6 +95,7 @@
                 line='export PATH="$PATH:/usr/pgsql-11/bin"'
                 insertbefore=EOF
                 create=yes
+    ignore_errors: true
 
   - name: Symlink 'pg_config' to /usr/bin/
     file: src=/usr/pgsql-11/bin/pg_config dest=/usr/bin/pg_config state=link
diff --git a/packages/template/ansible/tasks/provision-vm.yaml b/packages/template/ansible/tasks/provision-vm.yaml
index ee1f821..c7ed86e 100644
--- a/packages/template/ansible/tasks/provision-vm.yaml
+++ b/packages/template/ansible/tasks/provision-vm.yaml
@@ -1,6 +1,7 @@
 # Included by provision.yaml. Tasks only for the real server.
 - name: Link vagrant shared directory (VM only)
   file: src=/vagrant dest={{ code_root }} state=link owner={{ project_user }}
+  ignore_errors: true
 
 - name: Ensure the firewalld service is running
   service: name=firewalld state=started enabled=yes
diff --git a/packages/template/package.json b/packages/template/package.json
index 04cadb0..8ad06c5 100644
--- a/packages/template/package.json
+++ b/packages/template/package.json
@@ -1,6 +1,6 @@
 {
   "name": "template-aaa-backend",
-  "version": "2.2.5",
+  "version": "2.3.4",
   "private": true,
   "description": "the all about apps template project for a node.js backend service",
   "author": "all about apps",
@@ -58,19 +58,19 @@
     "utils": "LOG_LVL=fatal env-cmd ./env/service.env --no-override node build/scripts/utils.js"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/devtools": "^2.2.4",
-    "@aaa-backend-stack/git-info": "^2.2.4",
-    "@aaa-backend-stack/graphql": "^2.2.4",
-    "@aaa-backend-stack/graphql-rest-bindings": "^2.2.4",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/mailer": "^2.2.4",
-    "@aaa-backend-stack/polyfills": "^2.2.4",
-    "@aaa-backend-stack/pushes": "^2.2.5",
-    "@aaa-backend-stack/rest": "^2.2.4",
-    "@aaa-backend-stack/serverdate": "^2.2.4",
-    "@aaa-backend-stack/storage": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/devtools": "^2.3.4",
+    "@aaa-backend-stack/git-info": "^2.3.4",
+    "@aaa-backend-stack/graphql": "^2.3.4",
+    "@aaa-backend-stack/graphql-rest-bindings": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/mailer": "^2.3.4",
+    "@aaa-backend-stack/polyfills": "^2.3.4",
+    "@aaa-backend-stack/pushes": "^2.3.4",
+    "@aaa-backend-stack/rest": "^2.3.4",
+    "@aaa-backend-stack/serverdate": "^2.3.4",
+    "@aaa-backend-stack/storage": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "accepts": "1.3.5",
     "fb": "2.0.0",
     "google-auth-library": "1.6.1",
@@ -78,8 +78,8 @@
     "url-join": "4.0.0"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "@types/accepts": "1.3.5",
     "@types/lodash": "4.14.144",
     "@types/url-join": "0.8.2",
diff --git a/packages/tests/package.json b/packages/tests/package.json
index dccb6a5..d1f2ff6 100644
--- a/packages/tests/package.json
+++ b/packages/tests/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/tests",
-  "version": "2.2.5",
+  "version": "2.3.4",
   "private": true,
   "description": "Integration tests",
   "license": "MIT",
@@ -17,26 +17,26 @@
     "test": "exit 0"
   },
   "dependencies": {
-    "@aaa-backend-stack/build-tools": "^2.2.0",
-    "@aaa-backend-stack/devtools": "^2.2.4",
-    "@aaa-backend-stack/git-info": "^2.2.4",
-    "@aaa-backend-stack/graphql": "^2.2.4",
-    "@aaa-backend-stack/graphql-rest-bindings": "^2.2.4",
-    "@aaa-backend-stack/logger": "^2.2.4",
-    "@aaa-backend-stack/mailer": "^2.2.4",
-    "@aaa-backend-stack/polyfills": "^2.2.4",
-    "@aaa-backend-stack/pushes": "^2.2.5",
-    "@aaa-backend-stack/rest": "^2.2.4",
-    "@aaa-backend-stack/serverdate": "^2.2.4",
-    "@aaa-backend-stack/storage": "^2.2.4",
-    "@aaa-backend-stack/utils": "^2.2.4",
+    "@aaa-backend-stack/build-tools": "^2.3.4",
+    "@aaa-backend-stack/devtools": "^2.3.4",
+    "@aaa-backend-stack/git-info": "^2.3.4",
+    "@aaa-backend-stack/graphql": "^2.3.4",
+    "@aaa-backend-stack/graphql-rest-bindings": "^2.3.4",
+    "@aaa-backend-stack/logger": "^2.3.4",
+    "@aaa-backend-stack/mailer": "^2.3.4",
+    "@aaa-backend-stack/polyfills": "^2.3.4",
+    "@aaa-backend-stack/pushes": "^2.3.4",
+    "@aaa-backend-stack/rest": "^2.3.4",
+    "@aaa-backend-stack/serverdate": "^2.3.4",
+    "@aaa-backend-stack/storage": "^2.3.4",
+    "@aaa-backend-stack/utils": "^2.3.4",
     "@types/lodash": "4.14.144",
     "lodash": "4.17.15",
-    "template-aaa-backend": "^2.2.5"
+    "template-aaa-backend": "^2.3.4"
   },
   "devDependencies": {
-    "@aaa-backend-stack/test-environment": "^2.2.4",
-    "@aaa-backend-stack/tslint-rules": "^2.2.0",
+    "@aaa-backend-stack/test-environment": "^2.3.4",
+    "@aaa-backend-stack/tslint-rules": "^2.3.4",
     "tslint": "5.11.0",
     "typescript": "3.7.2"
   },
diff --git a/packages/tslint-rules/package.json b/packages/tslint-rules/package.json
index 193d5fd..b52834c 100644
--- a/packages/tslint-rules/package.json
+++ b/packages/tslint-rules/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aaa-backend-stack/tslint-rules",
-  "version": "2.2.0",
+  "version": "2.3.4",
   "description": "aaa internal tslint rules",
   "license": "MIT",
   "author": "all about apps",