Using new images for chef solution (fixes 90d password-rotation issue with old image)

Author: rohanbhattacharjee

docs/solutions/chef/variables.tf

@@ -22,11 +22,12 @@ variable "InstanceShape" {
 variable "InstanceImageOCID" {
   type = "map"
   default = {
-    // Oracle-provided image "Oracle-Linux-7.4-2017.12.18-0"
     // See https://docs.us-phoenix-1.oraclecloud.com/Content/Resources/Assets/OracleProvidedImageOCIDs.pdf
-    us-phoenix-1 = "ocid1.image.oc1.phx.aaaaaaaasc56hnpnx7swoyd2fw5gyvbn3kcdmqc2guiiuvnztl2erth62xnq"
-    us-ashburn-1 = "ocid1.image.oc1.iad.aaaaaaaaxrqeombwty6jyqgk3fraczdd63bv66xgfsqka4ktr7c57awr3p5a"
-    eu-frankfurt-1 = "ocid1.image.oc1.eu-frankfurt-1.aaaaaaaayxmzu6n5hsntq4wlffpb4h6qh6z3uskpbm5v3v4egqlqvwicfbyq"
+    // Oracle-provided image "Oracle-Linux-7.4-2018.02.21-1"
+    us-phoenix-1 = "ocid1.image.oc1.phx.aaaaaaaaupbfz5f5hdvejulmalhyb6goieolullgkpumorbvxlwkaowglslq"
+    us-ashburn-1 = "ocid1.image.oc1.iad.aaaaaaaajlw3xfie2t5t52uegyhiq2npx7bqyu4uvi2zyu3w3mqayc2bxmaa"
+    eu-frankfurt-1 = "ocid1.image.oc1.eu-frankfurt1.aaaaaaaa7d3fsb6272srnftyi4dphdgfjf6gurxqhmv6ileds7ba3m2gltxq"
+    uk-london-1 = "ocid1.image.oc1.uk-london1.aaaaaaaaa6h6gj6v4n56mqrbgnosskq63blyv2752g36zerymy63cfkojiiq"
   }
 }