diff --git a/connect/.env b/connect/.env
index 4b537f067..f64f4543c 100644
--- a/connect/.env
+++ b/connect/.env
@@ -1 +1,3 @@
 RSC_VERSION=1.8.8.2
+R_VERSION=3.6.2
+PYTHON_VERSION=3.6.5
diff --git a/connect/docker-compose.test.yml b/connect/docker-compose.test.yml
index 40f1cb705..9c8204bfc 100644
--- a/connect/docker-compose.test.yml
+++ b/connect/docker-compose.test.yml
@@ -9,6 +9,8 @@ services:
     environment:
       # uses .env by default
       - RSC_VERSION
+      - R_VERSION
+      - PYTHON_VERSION
     volumes:
       - "./test/run_tests.sh:/run_tests.sh"
       - "./test/goss.yaml:/tmp/goss.yaml"
diff --git a/connect/test/goss.yaml b/connect/test/goss.yaml
index 674871c76..c0eb7642a 100644
--- a/connect/test/goss.yaml
+++ b/connect/test/goss.yaml
@@ -15,35 +15,54 @@ package:
 
 file:
   /etc/rstudio-connect/license.lic:
-    # currently does not exist
-    # be sure it is NOT a directory
+    # Currently does not exist
+    # Be sure it is NOT a directory
     exists: false
   /opt/rstudio-connect/:
     exists: true
   /opt/rstudio-connect/bin/connect:
     exists: true
+  /usr/local/bin/tini:
+    exists: true
+# Ensure startup file exists
+  /usr/local/bin/startup.sh:
+    exists: true
+    owner: root
+    group: root
+    filetype: file
+# Ensure log files exist
+  /var/log/rstudio-connect.log:
+    exists: true
+  /opt/python/{{.Env.PYTHON_VERSION}}/bin/python:
+    exists: true 
 
-# check product version
+# Check product version
 command:
   "/opt/rstudio-connect/bin/connect --version":
-    title: connect_version_matches
-    exit-status: 0
-    stdout: [
+   title: connect_version_matches
+   exit-status: 0
+   stdout: [
       "/{{ .Env.RSC_VERSION }}/"
-    ]
-  # goss times out after 10 seconds
+   ]
+
+# Goss times out after 10 seconds
   "timeout --signal=SIGINT 7 /opt/rstudio-connect/bin/connect --config /etc/rstudio-connect/rstudio-connect.gcfg":
     title: connect_starts
-    # the timeout should stop connect, not a failure
+    # The timeout should stop connect, not a failure
     exit-status: 124
-    # maybe optimistic that Connect finishes starting...
-    #stderr: [
-    #  "Starting HTTP listener on :3939"
-    #]
-  "/opt/R/3.6.2/bin/R --version":
+
+# Ensure correct R version 
+  "/opt/R/{{ .Env.R_VERSION }}/bin/R --version":
     title: r_version_match
     exit-status: 0
     stdout: [
-      "/3.6.2/"
+      "/{{ .Env.R_VERSION }}/"
     ]
 
+# Ensure correct python version
+  "/opt/python/{{ .Env.PYTHON_VERSION }}/bin/python --version":
+    title: python_version_matches
+    exit-status: 0
+    stderr: [
+      "/{{ .Env.PYTHON_VERSION }}/"
+    ]
diff --git a/package-manager/.env b/package-manager/.env
index bff087a5f..7d61bf69d 100644
--- a/package-manager/.env
+++ b/package-manager/.env
@@ -1 +1,2 @@
 RSPM_VERSION=1.2.2.1-17
+R_VERSION=3.6.2
diff --git a/package-manager/docker-compose.test.yml b/package-manager/docker-compose.test.yml
index 6b3c5f11b..22970f357 100644
--- a/package-manager/docker-compose.test.yml
+++ b/package-manager/docker-compose.test.yml
@@ -8,6 +8,7 @@ services:
     environment:
       # uses .env by default
       - RSPM_VERSION
+      - R_VERSION
     volumes:
       - "./test/run_tests.sh:/run_tests.sh"
       - "./test/goss.yaml:/tmp/goss.yaml"
diff --git a/package-manager/test/goss.yaml b/package-manager/test/goss.yaml
index 7a1719132..392ad2eec 100644
--- a/package-manager/test/goss.yaml
+++ b/package-manager/test/goss.yaml
@@ -15,8 +15,8 @@ package:
 
 file:
   /etc/rstudio-pm/license.lic:
-    # currently does not exist
-    # be sure it is NOT a directory
+# Currently does not exist
+# Be sure it is NOT a directory
     exists: false
   /opt/rstudio-pm/:
     exists: true
@@ -26,8 +26,14 @@ file:
     exists: true
   /usr/local/bin/rspm:
     exists: true
+  /usr/local/bin/tini:
+    exists: true
+  /var/log/rstudio-pm.log:
+    exists: true
+    filetype: file 
 
-# check product version
+
+# Check product version
 command:
   "/opt/rstudio-pm/bin/rstudio-pm --version":
     title: package-manager_version_matches
@@ -35,3 +41,15 @@ command:
     stdout: [
       "/{{ .Env.RSPM_VERSION }}/"
     ]
+# Ensure package manager is running
+  "/opt/rstudio-pm/bin/rstudio-pm --config /etc/rstudio-pm/rstudio-pm.gcfg":
+    title: rspm_start
+    exit-status: 0
+  
+# Ensure correct R version 
+  "/opt/R/{{ .Env.R_VERSION }}/bin/R --version":
+    title: r_version_match
+    exit-status: 0
+    stdout: [
+      "/{{ .Env.R_VERSION }}/"
+    ]
diff --git a/r-session-complete/bionic/.env b/r-session-complete/bionic/.env
new file mode 100644
index 000000000..87f5e5796
--- /dev/null
+++ b/r-session-complete/bionic/.env
@@ -0,0 +1,4 @@
+R_VERSION=4.0.2
+PYTHON_VERSION=3.7.7
+DRIVERS_VERSION=1.7.0
+RSP_VERSION=1.4.1717-3
diff --git a/r-session-complete/bionic/docker-compose.test.yml b/r-session-complete/bionic/docker-compose.test.yml
index d7df72404..8cf1a18d4 100644
--- a/r-session-complete/bionic/docker-compose.test.yml
+++ b/r-session-complete/bionic/docker-compose.test.yml
@@ -8,6 +8,9 @@ services:
     environment:
       # uses .env by default
       - RSP_VERSION
+      - R_VERSION
+      - PYTHON_VERSION
     volumes:
       - "./test/run_tests.sh:/run_tests.sh"
       - "./test/goss.yaml:/tmp/goss.yaml"
+      - "./test/goss_vars.yaml:/tmp/goss_vars.yaml"
diff --git a/r-session-complete/bionic/test/goss.yaml b/r-session-complete/bionic/test/goss.yaml
index 3481757f8..ce2b45279 100644
--- a/r-session-complete/bionic/test/goss.yaml
+++ b/r-session-complete/bionic/test/goss.yaml
@@ -3,8 +3,39 @@ file:
     exists: true
   /usr/lib/rstudio-server/bin/rsession:
     exists: true
+  /opt/code-server/:
+    exists: true 
+    filetype: directory
+  /opt/rstudio-drivers:
+   exists: true
+   filetype: directory
 
 command:
   "echo '{ \"cells\": [], \"metadata\": {}, \"nbformat\": 4, \"nbformat_minor\": 2}' | /opt/python/3.7.7/bin/jupyter nbconvert --to notebook --stdin --stdout":
     title: jupyter_works
     exit-status: 0
+
+# Ensure all R Packages are installed
+ {{ $pkgs := .Vars.RPackages }}
+  /opt/R/{{ .Env.R_VERSION }}/bin/R --slave -e 'library()' | cut -f 1 -d ' ' | grep -v '^Packages$' | grep -v '^$':
+    exit-status: 0
+    stdout:
+      {{ range $pkg := $pkgs }}
+      - {{ $pkg }}
+      {{end}}
+
+# Ensure correct R version 
+  "/opt/R/{{.Env.R_VERSION}}/bin/R --version":
+    title: r_version_match
+    exit-status: 0
+    stdout: [
+      "/{{.Env.R_VERSION}}/"
+    ]
+
+# Ensure correct python version
+  "/opt/python/{{.Env.PYTHON_VERSION}}/bin/python --version":
+    title: python_version_matches
+    exit-status: 0
+    stdout: [
+      "/{{ .Env.PYTHON_VERSION }}/"
+    ]
diff --git a/r-session-complete/bionic/test/goss_vars.yaml b/r-session-complete/bionic/test/goss_vars.yaml
new file mode 100644
index 000000000..9618c6a53
--- /dev/null
+++ b/r-session-complete/bionic/test/goss_vars.yaml
@@ -0,0 +1,7 @@
+RPackages:
+  - "odbc"
+  - "devtools"
+  - "shiny"
+  - "rmarkdown"
+  - "plumber"
+
diff --git a/r-session-complete/centos7/.env b/r-session-complete/centos7/.env
new file mode 100644
index 000000000..87f5e5796
--- /dev/null
+++ b/r-session-complete/centos7/.env
@@ -0,0 +1,4 @@
+R_VERSION=4.0.2
+PYTHON_VERSION=3.7.7
+DRIVERS_VERSION=1.7.0
+RSP_VERSION=1.4.1717-3
diff --git a/r-session-complete/centos7/docker-compose.test.yml b/r-session-complete/centos7/docker-compose.test.yml
index d7df72404..8cf1a18d4 100644
--- a/r-session-complete/centos7/docker-compose.test.yml
+++ b/r-session-complete/centos7/docker-compose.test.yml
@@ -8,6 +8,9 @@ services:
     environment:
       # uses .env by default
       - RSP_VERSION
+      - R_VERSION
+      - PYTHON_VERSION
     volumes:
       - "./test/run_tests.sh:/run_tests.sh"
       - "./test/goss.yaml:/tmp/goss.yaml"
+      - "./test/goss_vars.yaml:/tmp/goss_vars.yaml"
diff --git a/r-session-complete/centos7/test/goss.yaml b/r-session-complete/centos7/test/goss.yaml
index 3481757f8..ce2b45279 100644
--- a/r-session-complete/centos7/test/goss.yaml
+++ b/r-session-complete/centos7/test/goss.yaml
@@ -3,8 +3,39 @@ file:
     exists: true
   /usr/lib/rstudio-server/bin/rsession:
     exists: true
+  /opt/code-server/:
+    exists: true 
+    filetype: directory
+  /opt/rstudio-drivers:
+   exists: true
+   filetype: directory
 
 command:
   "echo '{ \"cells\": [], \"metadata\": {}, \"nbformat\": 4, \"nbformat_minor\": 2}' | /opt/python/3.7.7/bin/jupyter nbconvert --to notebook --stdin --stdout":
     title: jupyter_works
     exit-status: 0
+
+# Ensure all R Packages are installed
+ {{ $pkgs := .Vars.RPackages }}
+  /opt/R/{{ .Env.R_VERSION }}/bin/R --slave -e 'library()' | cut -f 1 -d ' ' | grep -v '^Packages$' | grep -v '^$':
+    exit-status: 0
+    stdout:
+      {{ range $pkg := $pkgs }}
+      - {{ $pkg }}
+      {{end}}
+
+# Ensure correct R version 
+  "/opt/R/{{.Env.R_VERSION}}/bin/R --version":
+    title: r_version_match
+    exit-status: 0
+    stdout: [
+      "/{{.Env.R_VERSION}}/"
+    ]
+
+# Ensure correct python version
+  "/opt/python/{{.Env.PYTHON_VERSION}}/bin/python --version":
+    title: python_version_matches
+    exit-status: 0
+    stdout: [
+      "/{{ .Env.PYTHON_VERSION }}/"
+    ]
diff --git a/r-session-complete/centos7/test/goss_vars.yaml b/r-session-complete/centos7/test/goss_vars.yaml
new file mode 100644
index 000000000..4c0fff8a4
--- /dev/null
+++ b/r-session-complete/centos7/test/goss_vars.yaml
@@ -0,0 +1,6 @@
+RPackages:
+  - "odbc"
+  - "devtools"
+  - "shiny"
+  - "rmarkdown"
+  - "plumber"
diff --git a/server-pro/.env b/server-pro/.env
index 954617921..04ac9ce61 100644
--- a/server-pro/.env
+++ b/server-pro/.env
@@ -1,3 +1,8 @@
 RSP_VERSION=1.4.1717-3
 RSP_DOWNLOAD_URL=https://download2.rstudio.org/server/bionic/amd64
 RSP_NAME=rstudio-workbench
+PYTHON_VERSION=3.9.5
+PYTHON_VERSION_ALT=3.8.10
+JUPYTER_PYTHON_VERSION=3.8.10
+R_VERSION_ALT=4.1.0
+R_VERSION=3.6.2
diff --git a/server-pro/Dockerfile b/server-pro/Dockerfile
index 358617b70..3aa2cbcfa 100644
--- a/server-pro/Dockerfile
+++ b/server-pro/Dockerfile
@@ -81,16 +81,16 @@ RUN curl -O https://repo.anaconda.com/miniconda/Miniconda3-4.7.12.1-Linux-x86_64
 
 # Install another Python --------------------------------------------------------------#
 
-ARG ALT_PYTHON_VERSION=3.8.10
+ARG PYTHON_VERSION_ALT=3.8.10
 RUN curl -O https://repo.anaconda.com/miniconda/Miniconda3-4.7.12.1-Linux-x86_64.sh && \
-    bash Miniconda3-4.7.12.1-Linux-x86_64.sh -bp /opt/python/${ALT_PYTHON_VERSION} && \
-    /opt/python/${ALT_PYTHON_VERSION}/bin/conda install -y python==${ALT_PYTHON_VERSION} && \
-    /opt/python/${ALT_PYTHON_VERSION}/bin/pip install \
+    bash Miniconda3-4.7.12.1-Linux-x86_64.sh -bp /opt/python/${PYTHON_VERSION_ALT} && \
+    /opt/python/${PYTHON_VERSION_ALT}/bin/conda install -y python==${PYTHON_VERSION_ALT} && \
+    /opt/python/${PYTHON_VERSION_ALT}/bin/pip install \
         ipykernel \
         virtualenv \
         && \
     rm -rf Miniconda3-*-Linux-x86_64.sh && \
-    /opt/python/${ALT_PYTHON_VERSION}/bin/python -m ipykernel install --name py${ALT_PYTHON_VERSION} --display-name "Python ${ALT_PYTHON_VERSION}"
+    /opt/python/${PYTHON_VERSION_ALT}/bin/python -m ipykernel install --name py${PYTHON_VERSION_ALT} --display-name "Python ${PYTHON_VERSION_ALT}"
 
 # Runtime settings ------------------------------------------------------------#
 ARG TINI_VERSION=0.18.0
diff --git a/server-pro/docker-compose.test.yml b/server-pro/docker-compose.test.yml
index d7df72404..772b6b735 100644
--- a/server-pro/docker-compose.test.yml
+++ b/server-pro/docker-compose.test.yml
@@ -8,6 +8,11 @@ services:
     environment:
       # uses .env by default
       - RSP_VERSION
+      - R_VERSION 
+      - PYTHON_VERSION
+      - PYTHON_VERSION_ALT
+      - JUPYTER_PYTHON_VERSION
+      - R_VERSION_ALT
     volumes:
       - "./test/run_tests.sh:/run_tests.sh"
       - "./test/goss.yaml:/tmp/goss.yaml"
diff --git a/server-pro/test/goss.yaml b/server-pro/test/goss.yaml
index 92ef3a5b4..35b444faf 100644
--- a/server-pro/test/goss.yaml
+++ b/server-pro/test/goss.yaml
@@ -20,16 +20,13 @@ file:
     exists: false
   /usr/lib/rstudio-server:
     exists: true
-  /opt/R/3.6.3/bin/R:
+  /opt/R/{{.Env.R_VERSION_ALT}}/bin/R:
     exists: true
     filetype: file
-  /opt/R/4.1.0/bin/R:
-    exists: true
-    filetype: file
-  /opt/python/3.9.5/bin/python:
+  /opt/python/{{.Env.PYTHON_VERSION}}/bin/python:
     exists: true
     filetype: symlink
-  /opt/python/3.8.10/bin/python:
+  /opt/python/{{.Env.PYTHON_VERSION_ALT}}/bin/python:
     exists: true
     filetype: symlink
   /opt/python/jupyter/bin/python:
@@ -50,6 +47,7 @@ file:
     owner: rstudio-server
     group: rstudio-server
 
+
 command:
   "su rstudio-server -c 'touch /var/lib/rstudio-server/monitor/log/rstudio-server.log'":
     title: server-pro_monitor_log_file_creates
@@ -57,34 +55,36 @@ command:
   "touch /var/log/rstudio-server.log":
     title: server-pro_server_log_creates
     exit-status: 0
-  # check product version
-  #"rstudio-server version":
-  #  title: server-pro_version_matches
-  #  exit-status: 0
-  #  stdout: [
-  #    "/{{ .Env.RSP_VERSION }}/",
-  #    "/Pro/" # this will switch to Workbench when we release the preview build
-  #  ]
+# Check product version
+  "rstudio-server version":
+    title: server-pro_version_matches
+    exit-status: 0
+    stdout: [
+       "/{{ .Env.RSP_VERSION }}/",
+       "/Workbench/"
+     ]
   "echo '{ \"cells\": [], \"metadata\": {}, \"nbformat\": 4, \"nbformat_minor\": 2}' | /opt/python/jupyter/bin/jupyter nbconvert --to notebook --stdin --stdout":
     title: jupyter_works
     exit-status: 0
+# Ensure correct python version    
   "/opt/python/3.8.10/bin/python --version":
-    title: python_version_matches
+    title: alternate_python_version_matches
     exit-status: 0
     stdout: [
-        "/3.8.10/"
+        "/{{.Env.PYTHON_VERSION_ALT}}/"
     ]
+# Ensure correct python version    
   "/opt/python/3.9.5/bin/python --version":
     title: python_version_matches
     exit-status: 0
     stdout: [
-      "/3.9.5/"
+      "/{{.Env.PYTHON_VERSION}}/"
     ]
   "/opt/python/jupyter/bin/python --version":
     title: jupyter_python_version_matches
     exit-status: 0
     stdout: [
-        "/3.8.10/"
+        "/{{.Env.JUPYTER_PYTHON_VERSION}}/"
     ]
   "which openssl":
     title: uses_system_openssl