diff --git a/pkg/model/resources/nodeup.go b/pkg/model/resources/nodeup.go
index 1485bd88f3..086db078b5 100644
--- a/pkg/model/resources/nodeup.go
+++ b/pkg/model/resources/nodeup.go
@@ -74,9 +74,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -93,6 +94,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/pkg/model/tests/data/bootstrapscript_0.txt b/pkg/model/tests/data/bootstrapscript_0.txt
index 0cde801f4c..4819e5f5bc 100644
--- a/pkg/model/tests/data/bootstrapscript_0.txt
+++ b/pkg/model/tests/data/bootstrapscript_0.txt
@@ -63,9 +63,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -82,6 +83,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/pkg/model/tests/data/bootstrapscript_1.txt b/pkg/model/tests/data/bootstrapscript_1.txt
index ee92c3c482..3c3cd423df 100644
--- a/pkg/model/tests/data/bootstrapscript_1.txt
+++ b/pkg/model/tests/data/bootstrapscript_1.txt
@@ -63,9 +63,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -82,6 +83,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/pkg/model/tests/data/bootstrapscript_2.txt b/pkg/model/tests/data/bootstrapscript_2.txt
index ee92c3c482..3c3cd423df 100644
--- a/pkg/model/tests/data/bootstrapscript_2.txt
+++ b/pkg/model/tests/data/bootstrapscript_2.txt
@@ -63,9 +63,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -82,6 +83,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/pkg/model/tests/data/bootstrapscript_3.txt b/pkg/model/tests/data/bootstrapscript_3.txt
index 88639f1a2e..b77d064ec5 100644
--- a/pkg/model/tests/data/bootstrapscript_3.txt
+++ b/pkg/model/tests/data/bootstrapscript_3.txt
@@ -63,9 +63,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -82,6 +83,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/pkg/model/tests/data/bootstrapscript_4.txt b/pkg/model/tests/data/bootstrapscript_4.txt
index 986fea620d..6dbda1be3b 100644
--- a/pkg/model/tests/data/bootstrapscript_4.txt
+++ b/pkg/model/tests/data/bootstrapscript_4.txt
@@ -63,9 +63,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -82,6 +83,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/pkg/model/tests/data/bootstrapscript_5.txt b/pkg/model/tests/data/bootstrapscript_5.txt
index 986fea620d..6dbda1be3b 100644
--- a/pkg/model/tests/data/bootstrapscript_5.txt
+++ b/pkg/model/tests/data/bootstrapscript_5.txt
@@ -63,9 +63,10 @@ download-or-bust() {
   while true; do
     for url in "${urls[@]}"; do
       local file="${url##*/}"
-      rm -f "${file}"
 
-      if [[ $(which curl) ]]; then
+      if [[ -e "${file}" ]]; then
+        echo "== File exists for ${url} =="
+      elif [[ $(which curl) ]]; then
         if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
           echo "== Failed to curl ${url}. Retrying. =="
           break
@@ -82,6 +83,7 @@ download-or-bust() {
 
       if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
         echo "== Hash validation of ${url} failed. Retrying. =="
+        rm -f "${file}"
       else
         if [[ -n "${hash}" ]]; then
           echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/tests/integration/update_cluster/additional_cidr/cloudformation.json.extracted.yaml b/tests/integration/update_cluster/additional_cidr/cloudformation.json.extracted.yaml
index dff219a652..d2b3837398 100644
--- a/tests/integration/update_cluster/additional_cidr/cloudformation.json.extracted.yaml
+++ b/tests/integration/update_cluster/additional_cidr/cloudformation.json.extracted.yaml
@@ -48,9 +48,10 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1bmastersadditionalcidrex
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -67,6 +68,7 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1bmastersadditionalcidrex
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
@@ -324,9 +326,10 @@ Resources.AWSAutoScalingLaunchConfigurationnodesadditionalcidrexamplecom.Propert
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -343,6 +346,7 @@ Resources.AWSAutoScalingLaunchConfigurationnodesadditionalcidrexamplecom.Propert
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/tests/integration/update_cluster/additional_user-data/cloudformation.json.extracted.yaml b/tests/integration/update_cluster/additional_user-data/cloudformation.json.extracted.yaml
index 1b46cfcdc3..6213d23dec 100644
--- a/tests/integration/update_cluster/additional_user-data/cloudformation.json.extracted.yaml
+++ b/tests/integration/update_cluster/additional_user-data/cloudformation.json.extracted.yaml
@@ -57,9 +57,10 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1amastersadditionaluserda
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -76,6 +77,7 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1amastersadditionaluserda
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
@@ -354,9 +356,10 @@ Resources.AWSAutoScalingLaunchConfigurationnodesadditionaluserdataexamplecom.Pro
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -373,6 +376,7 @@ Resources.AWSAutoScalingLaunchConfigurationnodesadditionaluserdataexamplecom.Pro
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/tests/integration/update_cluster/existing_iam_cloudformation/cloudformation.json.extracted.yaml b/tests/integration/update_cluster/existing_iam_cloudformation/cloudformation.json.extracted.yaml
index 38fa31c4f2..a9af2afe75 100644
--- a/tests/integration/update_cluster/existing_iam_cloudformation/cloudformation.json.extracted.yaml
+++ b/tests/integration/update_cluster/existing_iam_cloudformation/cloudformation.json.extracted.yaml
@@ -48,9 +48,10 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1amastersminimalexampleco
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -67,6 +68,7 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1amastersminimalexampleco
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
@@ -324,9 +326,10 @@ Resources.AWSAutoScalingLaunchConfigurationnodesminimalexamplecom.Properties.Use
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -343,6 +346,7 @@ Resources.AWSAutoScalingLaunchConfigurationnodesminimalexamplecom.Properties.Use
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
diff --git a/tests/integration/update_cluster/minimal-cloudformation/cloudformation.json.extracted.yaml b/tests/integration/update_cluster/minimal-cloudformation/cloudformation.json.extracted.yaml
index 38fa31c4f2..a9af2afe75 100644
--- a/tests/integration/update_cluster/minimal-cloudformation/cloudformation.json.extracted.yaml
+++ b/tests/integration/update_cluster/minimal-cloudformation/cloudformation.json.extracted.yaml
@@ -48,9 +48,10 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1amastersminimalexampleco
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -67,6 +68,7 @@ Resources.AWSAutoScalingLaunchConfigurationmasterustest1amastersminimalexampleco
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="
@@ -324,9 +326,10 @@ Resources.AWSAutoScalingLaunchConfigurationnodesminimalexamplecom.Properties.Use
     while true; do
       for url in "${urls[@]}"; do
         local file="${url##*/}"
-        rm -f "${file}"
 
-        if [[ $(which curl) ]]; then
+        if [[ -e "${file}" ]]; then
+          echo "== File exists for ${url} =="
+        elif [[ $(which curl) ]]; then
           if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --retry 6 --retry-delay 10 "${url}"; then
             echo "== Failed to curl ${url}. Retrying. =="
             break
@@ -343,6 +346,7 @@ Resources.AWSAutoScalingLaunchConfigurationnodesminimalexamplecom.Properties.Use
 
         if [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
           echo "== Hash validation of ${url} failed. Retrying. =="
+          rm -f "${file}"
         else
           if [[ -n "${hash}" ]]; then
             echo "== Downloaded ${url} (SHA1 = ${hash}) =="