Add bucket size to advanced options

src/lib/cloudfuse/child_process.h

@@ -22,6 +22,7 @@
    SOFTWARE
 */
 
+#include <cstdint>
 #include <string>
 
 struct processReturn
@@ -38,12 +39,14 @@ class CloudfuseMngr
     processReturn dryRun(const std::string passphrase);
     processReturn mount(const std::string passphrase);
     processReturn genS3Config(const std::string accessKeyId, const std::string secretAccessKey,
-                              const std::string endpoint, const std::string bucketName, const std::string passphrase);
+                              const std::string endpoint, const std::string bucketName, const uint64_t bucketSizeMb,
+                              const std::string passphrase);
 #elif defined(__linux__) || defined(__APPLE__)
     processReturn dryRun(const std::string accessKeyId, const std::string secretAccessKey,
                          const std::string passphrase);
     processReturn mount(const std::string accessKeyId, const std::string secretAccessKey, const std::string passphrase);
-    processReturn genS3Config(const std::string endpoint, const std::string bucketName, const std::string passphrase);
+    processReturn genS3Config(const std::string endpoint, const std::string bucketName, const uint64_t bucketSizeMb,
+                              const std::string passphrase);
 #endif
     std::string getMountDir();
     std::string getFileCacheDir();

src/lib/cloudfuse/child_process_linux.cpp

@@ -46,7 +46,7 @@ CloudfuseMngr::CloudfuseMngr()
 {
     std::string systemName = getSystemName();
     // NOTE: increment the version number when the config template changes
-    templateVersionString = "template-version: 0.1";
+    templateVersionString = "template-version: 0.2";
     std::string config_template = templateVersionString + R"(
 allow-other: true
 logging:
@@ -64,6 +64,7 @@ allow-other: true
   negative-entry-expiration-sec: 1800
   ignore-open-flags: true
   network-share: true
+  display-capacity-mb: { DISPLAY_CAPACITY }
 
 file_cache:
   path: { 0 }
@@ -173,7 +174,7 @@ processReturn CloudfuseMngr::spawnProcess(char *const argv[], char *const envp[]
 }
 
 processReturn CloudfuseMngr::genS3Config(const std::string endpoint, const std::string bucketName,
-                                         const std::string passphrase)
+                                         const uint64_t bucketSizeMb, const std::string passphrase)
 {
     const std::string configArg = "--config-file=" + templateFile;
     const std::string outputArg = "--output-file=" + configFile;
@@ -189,7 +190,9 @@ processReturn CloudfuseMngr::genS3Config(const std::string endpoint, const std::
 
     const std::string bucketNameEnv = "BUCKET_NAME=" + bucketName;
     const std::string endpointEnv = "ENDPOINT=" + endpoint;
-    char *const envp[] = {const_cast<char *>(bucketNameEnv.c_str()), const_cast<char *>(endpointEnv.c_str()), NULL};
+    const std::string bucketSizeEnv = "DISPLAY_CAPACITY=" + std::to_string(bucketSizeMb);
+    char *const envp[] = {const_cast<char *>(bucketNameEnv.c_str()), const_cast<char *>(endpointEnv.c_str()),
+                          const_cast<char *>(bucketSizeEnv.c_str()), NULL};
 
     return spawnProcess(argv, envp);
 }

src/lib/cloudfuse/child_process_windows.cpp

@@ -72,7 +72,7 @@ CloudfuseMngr::CloudfuseMngr()
 {
     std::string systemName = getSystemName();
     // NOTE: increment the version number when the config template changes
-    templateVersionString = "template-version: 0.1";
+    templateVersionString = "template-version: 0.2";
     std::string config_template = templateVersionString + R"(
 allow-other: true
 logging:
@@ -90,6 +90,7 @@ allow-other: true
   negative-entry-expiration-sec: 1800
   ignore-open-flags: true
   network-share: true
+  display-capacity-mb: { DISPLAY_CAPACITY }
 
 file_cache:
   path: { 0 }
@@ -262,16 +263,17 @@ processReturn CloudfuseMngr::spawnProcess(wchar_t *argv, std::wstring envp)
 
 processReturn CloudfuseMngr::genS3Config(const std::string accessKeyId, const std::string secretAccessKey,
                                          const std::string endpoint, const std::string bucketName,
-                                         const std::string passphrase)
+                                         const uint64_t bucketSizeMb, const std::string passphrase)
 {
     const std::string argv = "cloudfuse gen-config --config-file=" + templateFile + " --output-file=" + configFile +
                              " --temp-path=" + fileCacheDir + " --passphrase=" + passphrase;
     const std::string aws_access_key_id_env = "AWS_ACCESS_KEY_ID=" + accessKeyId;
     const std::string aws_secret_access_key_env = "AWS_SECRET_ACCESS_KEY=" + secretAccessKey;
     const std::string endpoint_env = "ENDPOINT=" + endpoint;
     const std::string bucket_name_env = "BUCKET_NAME=" + bucketName;
-    const std::string envp =
-        aws_access_key_id_env + '\0' + aws_secret_access_key_env + '\0' + endpoint_env + '\0' + bucket_name_env + '\0';
+    const std::string bucket_size_env = "DISPLAY_CAPACITY=" + std::to_string(bucketSizeMb);
+    const std::string envp = aws_access_key_id_env + '\0' + aws_secret_access_key_env + '\0' + endpoint_env + '\0' +
+                             bucket_name_env + '\0' + bucket_size_env + '\0';
 
     const std::wstring wargv = std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t>().from_bytes(argv);
     const std::wstring wenvp = std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t>().from_bytes(envp);

src/plugin/settings/engine.cpp

@@ -244,6 +244,11 @@
         {
             return true;
         }
+        // bucket capacity
+        if (m_prevSettings[kBucketSizeTextFieldId] != newValues[kBucketSizeTextFieldId])
+        {
+            return true;
+        }
     }
     // nothing we care about changed
     return false;
@@ -257,11 +262,22 @@
     std::string secretKey = values[kSecretKeyPasswordFieldId];
     std::string endpointUrl = kDefaultEndpoint;
     std::string bucketName = "";
+    uint64_t bucketCapacityGB = kDefaultBucketSizeGb;
     if (!credentialsOnly)
     {
         endpointUrl = values[kEndpointUrlTextFieldId];
         bucketName = values[kBucketNameTextFieldId]; // The default empty string will cause cloudfuse
                                                      // to select first available bucket
+        try
+        {
+            bucketCapacityGB = std::stoi(values[kBucketSizeTextFieldId]);
+        }
+        catch (std::invalid_argument &e)
+        {
+            NX_PRINT << "Bad input for bucket capacity: " << values[kBucketSizeTextFieldId];
+            // revert to default - write back to settings so user can see value reset
+            values[kBucketSizeTextFieldId] = std::to_string(kDefaultBucketSizeGb);
+        }
     }
     std::string mountDir = m_cfManager.getMountDir();
     std::string fileCacheDir = m_cfManager.getFileCacheDir();
@@ -342,9 +358,11 @@
     }
     NX_PRINT << "spawning process from genS3Config";
 #if defined(__linux__)
-    const processReturn dryGenConfig = m_cfManager.genS3Config(endpointUrl, bucketName, m_passphrase);
+    const processReturn dryGenConfig =
+        m_cfManager.genS3Config(endpointUrl, bucketName, bucketCapacityGB * 1024, m_passphrase);
 #elif defined(_WIN32)
-    const processReturn dryGenConfig = m_cfManager.genS3Config(keyId, secretKey, endpointUrl, bucketName, m_passphrase);
+    const processReturn dryGenConfig =
+        m_cfManager.genS3Config(keyId, secretKey, endpointUrl, bucketName, bucketCapacityGB * 1024, m_passphrase);
 #endif
     if (dryGenConfig.errCode != 0)
     {

src/plugin/settings/settings_model.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 
 namespace settings
@@ -53,6 +54,8 @@
 static const std::string kEndpointUrlTextFieldId = "endpointUrl";
 static const std::string kDefaultEndpoint = "https://s3.us-east-1.lyvecloud.seagate.com";
 static const std::string kBucketNameTextFieldId = "bucketName";
+static const std::string kBucketSizeTextFieldId = "bucketCapacity";
+static const uint64_t kDefaultBucketSizeGb = 1024;
 static const std::string kAdvancedGroupBox = R"json(
         {
             "type": "GroupBox",
@@ -80,6 +83,19 @@
                     "defaultValue": "",
                     "validationErrorMessage": "Bucket name can only contain lowercase letters, numbers, dashes, and dots.",
                     "validationRegex": "^[-.a-z0-9]*$"
+                },
+                {
+                    "type": "SpinBox",
+                    "name": ")json" + kBucketSizeTextFieldId +
+                                             R"json(",
+                    "caption": "Backup Storage Limit (in GB)",
+                    "description": "Maximum data this server should back up - default is )json" +
+                                             std::to_string(kDefaultBucketSizeGb) +
+                                             R"json(GB",
+                    "defaultValue": )json" + std::to_string(kDefaultBucketSizeGb) +
+                                             R"json(,
+                    "minValue": 1,
+                    "maxValue": 1000000000
                 }
             ]
         })json";
@@ -96,7 +112,7 @@
     kCredentialGroupBox + (credentialsOnly ? "" : ("," + kAdvancedGroupBox + "," + kPluginWebsiteLink));
 
 // top-level settings model
 static const std::string kEngineSettingsModel = /*suppress newline*/ 1 + R"json(
 {
     "type": "Settings",
     "items":