diff --git a/examples/tls.yaml b/examples/tls.yaml
index 164f0e59..47df2ff9 100644
--- a/examples/tls.yaml
+++ b/examples/tls.yaml
@@ -78,7 +78,7 @@ stringData:
     -----END PRIVATE KEY-----
 ---
 # TLS certificate generated with:
-#   go run $(go env GOROOT)/src/crypto/tls/generate_cert.go -start-date 'Jan 1 00:00:00 2021' -duration 87600h -host www.example.com -rsa-bits 1024
+#   go run $(go env GOROOT)/src/crypto/tls/generate_cert.go -start-date 'Jan 1 00:00:00 2021' -duration 87600h -host www.example.com -rsa-bits 2048
 apiVersion: v1
 kind: Secret
 metadata:
@@ -87,32 +87,50 @@ type: kubernetes.io/tls
 stringData:
   tls.crt: |-
     -----BEGIN CERTIFICATE-----
-    MIIB+jCCAWOgAwIBAgIQRLwc7m5PNh3qNWW9jbWIPzANBgkqhkiG9w0BAQsFADAS
+    MIIC/zCCAeegAwIBAgIQJKzZzFX2lwtGlsY/YDXhBDANBgkqhkiG9w0BAQsFADAS
     MRAwDgYDVQQKEwdBY21lIENvMB4XDTIxMDEwMTAwMDAwMFoXDTMwMTIzMDAwMDAw
-    MFowEjEQMA4GA1UEChMHQWNtZSBDbzCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkC
-    gYEAuZKXvIBthYPiXh1hBY8hJI8/uOLjushGDklmjI25Qfzs8TH6kPw647JXMMtr
-    5afvgg9oMpJYeoVkBXL21iFe/yba/scyVb6Q9gsPtxppXv1m3SsqVqPu7SQtnvxP
-    ikBKiz76M7bl35do/M5j9iaKqzY0qhhcQBtGWkppN/JamvUCAwEAAaNRME8wDgYD
-    VR0PAQH/BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAw
-    GgYDVR0RBBMwEYIPd3d3LmV4YW1wbGUuY29tMA0GCSqGSIb3DQEBCwUAA4GBAFpJ
-    HTqOKzhBBYeJsssorvRI09Vxm5iwVciCdUchyGT2VNZmkcuAlk40u9xTbfHz5iPX
-    Q6FcCxtr8C4sm9z5vLLDzzYVugQNosWoKMEOaw68PTG5OkNQUWOOCy0kSl9EG2wi
-    K0PSs3CqiW8q1wSgRYAQwZ+jRvl3QLiCdDQAYEPN
+    MFowEjEQMA4GA1UEChMHQWNtZSBDbzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC
+    AQoCggEBAJ6xociK7Chs9MgDjuqs1vxSp1KYr8f70bZkLPDm3e4lqAkqTm8nBoN3
+    BkIxUJrc/MiQdOrvJ4wKGc2YGD5vt9+F1uRMcDOWWBKoh1m+eHqwme7XyZkIPfD5
+    tBTwGGVOuBHl1i158BPa6w2QQqdxh9sTJRYzusAX3BDEEBTV0Tck97us8CEvIEiy
+    U39Ok+40K+4T4wOXPKyFQKD1MwucNkfoFJedoDV1eogXnznPWbDQuZdHLNLXECBm
+    kcyQyvMuNKJ8ALxZpdTanEdiRVgFKFxCOAcxwNy5+7tcw6mLFL40YujnyLOonFsX
+    1/2kSXytlCYOZSwgJZiaOuLpERxwcHECAwEAAaNRME8wDgYDVR0PAQH/BAQDAgWg
+    MBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwGgYDVR0RBBMwEYIP
+    d3d3LmV4YW1wbGUuY29tMA0GCSqGSIb3DQEBCwUAA4IBAQBzSs3PAeowIlN9j28L
+    F1zg5Xh4GdiBc6sWofbmv24GVFTKwJovJguVA9PSpDj1kU2mrkoOrsNjxIv+UN4Y
+    Tf2aSvjVj78jtsl5CoRx5G79KdjCFIhNLd38tl6dA5PIgfe98K9eTsNMLnEZ5mcp
+    iMPrxX/8YYF7sdi9EcJJYz3p45VkqDh1sUC/s+M/onNbFn70HzDlEOez7Kdan2Hp
+    C3/bCKx0f46z2GtWbslaZ9DSx/kLrjfSSgRQDExhmX2bCCRU1W5jmWXIjOHJQtvp
+    sTEzjnpdBDLcukzwvkUSXJlZPghYFyY7iZpWbZysErtl0PY6B8dNP7pzqXgyfRCc
+    bSW2
     -----END CERTIFICATE-----
   tls.key: |-
     -----BEGIN PRIVATE KEY-----
-    MIICeQIBADANBgkqhkiG9w0BAQEFAASCAmMwggJfAgEAAoGBALmSl7yAbYWD4l4d
-    YQWPISSPP7ji47rIRg5JZoyNuUH87PEx+pD8OuOyVzDLa+Wn74IPaDKSWHqFZAVy
-    9tYhXv8m2v7HMlW+kPYLD7caaV79Zt0rKlaj7u0kLZ78T4pASos++jO25d+XaPzO
-    Y/Ymiqs2NKoYXEAbRlpKaTfyWpr1AgMBAAECgYEAnSbzsQLhvQvvC9y9aUPIwXk+
-    cYhTar5n9XlbivQKS0OyNKAqndW82U8SX5Qlj5skTXRWvV0J6NhF2Ad/2d7w3pn0
-    eWYZ0APeVKmIfqFytjVZEKx9kcjE//ADOF96I9Q4xkZF0E+PTS4eBpGdukVUqC+w
-    kEYwlaPzrVvS5fgjg4ECQQDUfSzORg8BKt6darM2dD5yIeYwEWqhxS+M2wb3Wy9s
-    J9ATm2n4fxX+ebu+YHs2tEcSEiCjZmGZC6I4wHCPsje9AkEA35JxoXP4ObUFJP/0
-    6w4Es7dUbNo8OGBG4FEGFRGQp/sf/LCyNo15hBIfUX4tHgFkZdoZw3tJAJJtKZad
-    hpenmQJBAKsTTKuWRCZQeYKLkVXaKRyCpm002ID93Nau0OD9jSSquR/QFHV4/CAx
-    qjIQQ6M7aazm41gq6ZDqiOTgKr/GYJECQQC25CmoliH9syPePLSyhOk7y0F5Op4A
-    0GGqpx1+prvbbwefwzxGfD1n2RtdowZtgV4MI/rnezchDKfYWanLrMwhAkEAvosv
-    mbPtM41dl2mf6vxnop4PxA4nOX+DM0A2sWtokEKfZiG4t87WzbrkA0uvYgBJahNI
-    2gDRg0Q++7eWC3uDqA==
+    MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCesaHIiuwobPTI
+    A47qrNb8UqdSmK/H+9G2ZCzw5t3uJagJKk5vJwaDdwZCMVCa3PzIkHTq7yeMChnN
+    mBg+b7ffhdbkTHAzllgSqIdZvnh6sJnu18mZCD3w+bQU8BhlTrgR5dYtefAT2usN
+    kEKncYfbEyUWM7rAF9wQxBAU1dE3JPe7rPAhLyBIslN/TpPuNCvuE+MDlzyshUCg
+    9TMLnDZH6BSXnaA1dXqIF585z1mw0LmXRyzS1xAgZpHMkMrzLjSifAC8WaXU2pxH
+    YkVYBShcQjgHMcDcufu7XMOpixS+NGLo58izqJxbF9f9pEl8rZQmDmUsICWYmjri
+    6REccHBxAgMBAAECggEAeMWO7mRrncht8dpjZc3sP1NX69Av1u6ah0htu1i4BYm6
+    /F6qGoWEu4BVzwJg6brM1oa5tCIV4sm9IW5i5QF42i+tf0l9CoWcuXZwq6f9YMIO
+    JGstDb3sBfzDRDwFFPR3uYdFHI70Wuf8gvILCAuq7NsBGoh7071UyZ2s725aLrBM
+    h45LaH5c0+V0xSoSxi0l/0nzaqEg0Hl2/elaiZ2zT5IBBKVumdpr7cKL3uo6polB
+    zpgjs787Z9aaOBb/qECRGYs4QS2kyTtdyEmgUT7hMiBmOh3+1NXVl4aGAhpK28PV
+    mK4AtBWYxiQvvNZWSW4Clk1XUTT6ogBBsQx5cL900QKBgQDASDMajU03S72KWBvM
+    YwS1HWIZDU5diK8lcRw6aPc7YRGrEIpAADRahKLXqhD2l3kAj1yIrkp2OaaQsVeL
+    hBnOOt/djCohQQ5txKMnDFs0moy1/b/Iut3WEHDWvsDD5t5Lh3IlgNK85KGrbXAs
+    s9P2cAVR7aMYjLkbMnkX2e5XTwKBgQDTSA8esclzdSHoxx6eUPsMPKq2X2Eu37P8
+    jteiaSgbNfo8U1NAWQOVsh7ZangkjtIwHGq+CGgkgqbII8ddNSPqGYd5X/4Mf24d
+    NHcXwIJq6bcwjqtOp9Idl49yQyIfIBBCOeDCvm8R+FsVivpiTa7+aPu4xZSUiQAg
+    hjb3kerMPwKBgD8nN4mwAT15Je7LU44Es6Yc2Xxq72MvIn+EsAXLNfCNyDTMQOwW
+    ZRuZ1rZIyDuFsptperX1sMU12CxL4voS0Dr5AVAN2kSDzo5k+EU5/LbBUBfyGMx/
+    +550VetiSYPOTxK1kNsafZzG5wab8izsf2DAmC65g0jr51w0bqtTy8FnAoGBAIKF
+    U4Hcxtxike4hhFK9KDmpCLTdO0YfwCrXe3LDj5kvwUSfHSD1XHePr+sUEOBUspgy
+    FecLfnp/k9Sz9aco+uTVnJFosaK63iWAkcnEjUzK0PZYTI+ssOrDBETMIDomLqUa
+    6DSmPCtXx70JPCCaaO6VoFvHA0C3WbK99xr9s5U1AoGAV+nyUxsoiX/OXHEvp5R8
+    8EPPm8B/lUWlVTLW0p3jpeG2R8tB/qh33M3MJmUjf5LBZOvbNBQPnVXNfWeo4p8N
+    gExPrJ6FMR5uzQ/rwc2Dhx3lxB/f2QaOhs8Zn/Nv8k6vwGxqrEG5T6IRmWp4It6u
+    mKlDHmDO7rr7LOAHAAd3NtA=
     -----END PRIVATE KEY-----
diff --git a/test/integration_test.go b/test/integration_test.go
index 29528f7c..7c1a1a0e 100644
--- a/test/integration_test.go
+++ b/test/integration_test.go
@@ -88,11 +88,11 @@ func Test_Operator(t *testing.T) {
 		}{
 			{
 				filename:       "/etc/nginx/certs/my-rsa-cert/tls.crt",
-				expectedSha256: "6a95f3b95972f4beae4b54918498817d95f3d8cfb766c053cae656839e392430",
+				expectedSha256: "256bfbf7960e7f2fa4af64701a64525e794ffc4d6eab3d3ef79a0580a2f92fa5",
 			},
 			{
 				filename:       "/etc/nginx/certs/my-rsa-cert/tls.key",
-				expectedSha256: "f8a6da5db392519513597345931237dbb1a0a28fb89b7ce3b41562f988f9ef67",
+				expectedSha256: "68694230fe7bca079f5b83549289b6fc65d3009803cc9100156147bbe8d62ff5",
 			},
 			{
 				filename:       "/etc/nginx/certs/my-ecdsa-cert/tls.crt",